Primary 2 July Review 1

P2-Jul-Review 1

Ans:

1–  1

2–  4

3–  1

4–  2

5–  2

6–  3

2 pineap­ples –>  7 kg + 3 kg = 10 kg

1 pineap­ple ->  10 kg ÷ 2 = 5 kg

 

7–  4

8–  4

Cost of 1 book –>  $30 ÷ 5 = $6

$6 × 2 = $12

 

9–  3

Kelly’s height –>  121 cm  + 4 cm = 125 cm

125 cm — 6 cm = 119 cm

Con­tinue read­ing

Happy Weekend

welcome to the weekend

Primary 6 Prelims Revision 7

P6-Prelims-Ex 7

Ans:

1–  3

2–  4

3–  3

4–  2

5–  1

6–  3

7–  3

8–  3

60% –> 3/5

3/5 of  Tank A is equal to 5/9 of Tank B

[make the numer­a­tors common]

15/25 of Tank A is equal to 15/27 of Tank B

Tank A  :  Tank B
25        : 27

27u — 25u = 2u

2u –>  240 cm³

1u –> 120 cm³

120 cm³ × 27u = 3240 cm³

Con­tinue read­ing

Happy Weekend

helloweekend1

Happy Weekend

Happy Weekend

Primary 5 June Review 1

P5-June-Review 1

Ans:

1–  3

2–  3

3–  2

4–  3

5–  1

6–  2

7–  2

8–  4

40 : 45 = 8 : 9 = 16 : 18

Con­tinue read­ing

Happy Weekend

Sunday Well Spent

Primary 4 June Review 1

P4-June-Review 1

Ans:

1–  3

2–  3

3–  2

4–  4

5–  4

6–   4

7–  4

Lisa –> 4u

Michelle –> 5u

4u –>  60 marks

1u –>  15 marks

15 marks × 5 =  75 marks

 

8–  2

Joshua’s age –>  36 + 3  3/5 = 39  3/5 years old

39   3/5 — 5  3/10 = 34  3/10 years old×

Con­tinue read­ing

Primary 6 Prelims Revision 6

P6-Prelims-Ex 6

Ans:

1–  $1225

18% = 9/50

90% = 9/10

There­fore,

Bran­don   :   Charles
50        :     10
5          : 1

6u –> $1470

1u –> $245

$245 × 5u = $1225

 

2–  9/10 h

Time taken to fill 1/9 of the tank –>  2/5 ÷ 4 = 1/10 h

1/10 h × 9 = 9/10 h

 

3–  8 pen­tagons

3 × 5 = 15 match­sticks for the 3 extra pentagons

60 — 15 = 45 match­sticks (The num­ber of squares and pen­tagons are now the same)

Num­ber of match­sticks needed to make 1 square and 1 pen­ta­gon -> 4 + 5
= 9

45/9 = 5

5 + 3 = 8 pen­tagons

 

4–  10 hours

55 min = 11/12 h

11/12 h + 3/4 h = 1   2/3 h

5  1/2 h ÷ 11/12 h = 6 sets

6 × 1   2/3 h = 10 hours

 

5–  $40

85% — 55% = 30%

30% –> $12

100% –>  12/30 × 100 = $40

Con­tinue read­ing

Primary 3 Length, Mass and Volume Level 1 Ex 1

P3-Length, Mass and Volume-L1-Ex 1

Ans:

1–  1

2–  3

3–  3

4–  2

5–  2

6–  4

7–  2

8– 2

Mass of apple –>  640 g ÷ 4 = 160 g

160 g + 640 g = 800 g

Con­tinue read­ing