N3-L3 Whole Number Practice : Addition and Subtraction

WHOLE NUMBERS – L3 (N3)      (~60mins)      Date/Time:                           Tutor:             

 (Part 1) Revise(15-20mins)                                              Start Time:                 

1. Addition and subtraction, More than / less than

2. Word Problems

   a. Doing Simple Word Problems

   b. Word Problems using Model 

(Part2) Practice (40-55mins)         Start Time:                 

1.  Complete the followings:                                  Working

            (a) 742 -  🗆 = 395

            (b) 3218 + 🗆 = 8735

2.   Add 3639 and 2096

3.   Subtract 384 from 1162

4.   Find the difference between:

            (a) 5000 and 2372

            

            (b) 6196 and 897

5.   Find the sum of:

            (a) 5496 and 2372

            (b) 7000 and 897

                                                                                                Total Mark:                /8

Word Problems       (25 mins)                               

1.  David collected some plastic bottles. He gave away 69 of them for recycling and had 52 of them left. How many bottles did David collect? (28/p1/18f)

2. 98 people attended a concert. There were 16 more adults than children. Find the number of children at the concert. (1/p2/f)

3.  Aileen bought some eggs. She used 9 eggs for cooking and had 15 eggs left. How many eggs did Aileen buy?

4. Sara has 50 stickers. She gave 29 to her brother.  How many stickers does Sara left with? 

5. Aly bought 356 red marbles and 187 blue marbles. How many marbles did she buy altogether?

6. There were 40 passengers in the MRT cabin at first. At the next stop, 17 passengers entered the cabin and 12 passengers left. How many passengers are in the MRT cabin now?

7.  The smaller of two numbers is 1250. The greater number is 340 more than the smaller number. What is the sum of the two numbers?

8.  There were 4302 people at a concert. 2949 of them were adults. How many more adults than children were there?

End Time:                  

                                                                                                            Mark:              /8

                                                                                    Total Mark:                  /15          

Tutor Remark:                                                                                                                      

N3 Answer Key

I

1a.      347

1b.      5517

2          5735

3.         5735

4a.      3628

4b.      5299

5a.      7838

5b.      7897

II PSLE/Word Problems

1.         121

2.         41

3.         24

4.         21

5.         543

6.         45

7.         2840

8.         1596

N4/L4 : Whole Number Practice - Multiplication and Division

WHOLE NUMBERS – L4 (N4)      (~60mins)                 Date/Time:               Tutor:            

(Part 1) Revise(15-20mins)

                                                Start Time:                 

1. Concept and Use of multiplication

2. Concept and Use of Division, Division with remainder

3. Word Problems using Models 

(Part2) Practice (45~65mins)

 Multiplication  (~5mins)               Start Time:                             End Time:

Complete the table

3x2=	4x2=	5x2=	6x2=	7x2=	8x2=	9x2=	12x2=
3x3=	4x3=	5x3=	6x3=	7x3=	8x3=	9x3=	12x3=
3x4=	4x4=	5x4=	6x4=	7x4=	8x4=	9x4=	12x4=
3x5=	4x5=	5x5=	6x5=	7x5=	8x5=	9x5=	12x5=
3x6=	4x6=	5x6=	6x6=	7x6=	8x6=	9x6=	12x6=
3x7=	4x7=	5x7=	6x7=	7x7=	8x7=	9x7=	12x7=
3x8	4x8	5x8	6x8	7x8	8x8	9x8	12x8
3x9=	4x9=	5x9=	6x9=	7x9=	8x9=	9x9=	12x9=

1a.  63 x 10 =                        b.  127 x 100 =                     c.  854 x 1000 =

2a.  630 x 10 =                     b.  1270 x 100 =                   c.  8540 x 1000 =

3a.  940 ÷10 =                     b.  4980 ÷10 =                      c.  756000 ÷1000 =

4a.  9450 ÷50 =                   b.  4980 ÷60 =                      c.  756000 ÷7000 =

                                                                                                Total Mark:                /12

5.         What are the missing numbers?                          

       (a) 56 ÷7 =     + 7 =

            (b) 81 ÷9 =       - 9 =           

            (c) 9 x 6 =     + 6 = 

6. Find the product of 8 and 153

7. Divide 492÷8 with long division

8. Find the quotient and remainder of 769 ÷6   

                                                                                                Total Mark:                /18

 (III) Word Problems/PSLE            (35-50 mins)                         Start Time:                 

PSLE 2018F

1.         Amy has 3 times as much savings as Billy. Charlie has $70 more savings than Billy. How much savings does Charlie have if their total savings is $815? (12/p2/f)

2.         There are 42 pieces of cookies in the jar for 6 children. How many pieces of cookies can each child have?

3.         A packet contained 60 sweets. A tin contained 5 times as many sweets as a packet. Kelly bought 3 tins of sweets. How many sweets did she buy altogether?

4.         The theatre has 12 seats in each row. A group 43 of tourists occupied 4 rows of seat. How many seats in the 4 rows were not occupied by the tourist.

5*.       Carly has some sweets. If she gives each of her friends 5 sweets, there is no remainder. Is she gives each of them 3 sweets instead, she will have 36 sweet left. How many sweets does Carly have?

PSLE 2018S (Standard)

6.         David had a total of 345 local and foreign stamps. He gave half of his local stamps away and bought 15 more foreign stamps. In the end,

the number of the foreign stamps he had was thrice as many as the number of local stamps. How many local stamps did he have at first? (1/p2)

7.         Mr William sold 4 times as many iPads as laptops and collected a total

of $8400. Each laptop costs $325 more than an iPad. The amount collected for all the iPads sold was $3480 more than the amount collected for all the laptops sold. How many laptops did Mr William sell? (17/p2/s)

End Date/Time:                                                        Tutor:                          

                                                                                                Total Mark:                /7   Overall Mark :      /25

Tutor Remark:        

Answer Key

I

1a.      630

1b.      12700

1c.       854000

2a.      6300

2b.      1270000

2c.       8540000

3a.      94

3b.      498

3c.       758

4a.      189

4b.      83

4c.       108

5a.      56 / 7 = 1+ 7 = 8

5b.      81 / 9 = 18 – 9 = 9

5c.       9 x 6 = 48 + 6 = 54

6.         1224

7.       61.5

8.         quotient = 153 , remainder = 4

PSLE/Word Problems

1.         $219

2.         7

3.         180

4.         5

5.         90

6.         144

7.         3
Method 1:

Step1: Keywords/Values and Draw/Working of TUV

  Keywords/Value:  [Unit: 4 times ipad as laptop

     $value: ipad sold more by $3480, total = $8400] 

  Draw/Working:

Step2: Link the numbers

$i + $l + 3480 = 8400

$i + $l = 8400 - 3480 

                = 4920

$i = $l

$l = 4920/2 = $2460

Step3: Solve by forming equation

 ipad sales = $3480 + $2460 = $5940

 laptop = $2460

 For u unit of ipad and laptop, the values are

ipad = 5940/4 = 1486

Value of u unit of laptop = 2460

Value of u unit of ipad = 1486

Since laptop is $325 more for each laptop, 

Laptop: 1486 + 325u = 2460

       325u = 2460 – 1485

                = 975

             u = 975 / 325

                = 3

3 laptops are sold.

F3-L9 Fractions Practice : Multiplication

FRACTIONS – L3 (F3)       (45-60mins)     

(Part 1) Revise (20-25mins)                                             Start Time:                 

1. Fraction Multiplication and Division, 

    (proper and (proper/improper – no calc)

2a. Solving 2-step word problems (I)

2b.  Solving 2-steps word problems (II)

(Part2) Practice (25-45mins)

(II) Multiplication (~15 mins)                     

Multiply

         (1)  1   of 60                           (2)     2  of 35                

                2                                               5                             

Find the products.

         (3) 48 x  2                              (4)    8  x 5          

                      12                                     10   4             

5.     5    x    56                                                                                   

        8    

6.     7    x    45                                                                                  

        9    

7.     1     x   72                                                                                  

       12    

8.     21     x    20                    Try: 5/12 x 7/20                                                         

         5             7 

9.       4     x      7                                                                                 

         35           36

10.      3 1     x   64                                                                  

              8    

End Time:                   

(II) Word Problems/PSLE questions

11.         Kelvin had 48 marbles. He gave 1/6 of them to John, who already had 14 marbles. How many marbles had John in the end? (3/p1/18s)

(1) 6

(2) 8

(3) 20 

(4) 22                                                                                                             

12. Mrs. Lee bought a pizza for each for Peter and John. Peter ate 3/5 of the pizza. Tom ate 1/3 of what Peter ate. What fraction of the pizza did Tom eat?

13. Hazel made some cookies. She ate 1/5 of the cookies, gave 12 cookies to Tom and was left with 1/2 of the cookies. How many cookies did she have left?

14. Sara has 24m of ribbon. She cut it into equal pieces, each measuring 3/4m. How many pieces of 3/4m ribbon did she get?

15.  Jon is 1 3/5 m tall. Calvin is 9/10 m shorter than Jon. Find the total height of both boys?

16.      Ahmad had 7/8 kg of sugar. He packed them into smaller packets of 1/4 kg each. What is the mass of the remaining sugar? (11/p1/18s)

            (1) 1/8kg

            (2) 5/8kg 

            (3) 7/16kg

            (4) 7/32 kg

17.      Find the value of 1/6 ÷ 4/9. (16/p1/18s)

            Give your answer in the simplest form.

18* Kelly spent 1/3 of her money on 5 pens and 12 stickers. The cost of each pen is 3 times the cost of each sticker. She bought some more pen with ¾ of her remaining money. How many pens did Kelly buy altogether?

19* Gina bought some white rice and some brown rice. She cooked an equal amount of white and brown rice. She had ¾ of the white rice and 3/8 of the brown rice left. What fraction of the rice which Gina bought was cooked?

Answer Keys
1.  30
2.  17
3.  8
4.  1
5.  35
6.  35
7.  12
8.  12  , Try : 1/12
9.   1/45    
10.  200  
11.  4
12.  1/5
13.  20 cookies
14.  32
15.  2 3/10 m
16.  1
17.  3/8
18.  18 pens
19.  7/16