Tag Archives: Paper 1

Primary 4 August Review 4

P4-Aug-Review 4

Ans:

1–  3

2–  3

3–  2

4–  4

5–  4

7.25 a.m. to 9.25 a.m (2 hour) –>  8 quarter-turns

8.25 a.m. to 9.40 a.m. (15 min) –>  1 quar­ter turn

8 + 1 =

Con­tinue read­ing

  

Primary 5 SA1 Revision 4

P5-SA1-Ex 4

Ans:

1–  3

2–  3

3–  2

4–  1

5–  4

Con­tinue read­ing

  

Primary 6 SA1 Revision 8

P6-SA1-Ex 8

Ans:

1–  2/5 , 2/3 , 1/2 , 3/4

2–  3.08 kg

3–  264 min

4h –>  4 × 60 = 240 min

2/5 × 60 = 24 min

240 + 24 = 264 min

 

4–  $128

3/4 of Irene’s money is equal to 4/5 of Adam’s.
[make the numer­a­tor common)

-> 12/16 of Irene’s =  12/15 of Adam’s

Irene   :   Adam
16     : 15

15u –> $120

1u –> $8

16u –>  $8 × 16 = $128 

Con­tinue read­ing

  

Primary 6 SA1 Revision 7

P6-SA1-Ex 7

Ans:

1–  2

2–  2

3–  4

4–  2

10 + 5 + 6/1000 = 15.006

15.056 — 15.006 = 0.05

0.05 = 5/100 = 1/20

Con­tinue read­ing

  

Primary 6 SA1 Revision 5

P6-SA1-Ex 5

Ans:

1–  5.05

2–  45 786 ,   45 876 ,   54 678 ,   54 768

3–  1/5

4–  18.22

Con­tinue read­ing

  

Primary 5 SA1 Revision 2

P5-SA1-Ex 2

Ans:

1–  17/18

2–  66 cm²

1/2 × 11 × 12 = 66 cm²

 

3–  29

8 × 4 + (63 ÷ 7) — 12
= 8 × 4 + 9 — 12
=  32  +  9  -  12
29

Con­tinue read­ing

  

Primary 6 SA1 Revision 4

P6-SA1-Ex 4

Ans:

1–  4

2–  1

3–  3

4–  2

Total of the 2 num­bers –>  30 × 2 = 60

Smaller num­ber ->  1u
Big­ger num­ber -> 2u

3u –>  60
1u –>  60 ÷ 3 = 20

Con­tinue read­ing

  

Primary 5 SA1 Revision 1

P5-SA1-Ex 1

Ans:

1–  1

2–  2

3–  4

336 ÷ 12 = 28

28 + 12 = 40

 

4–  2

1/6  +  3/4  =  2/12  +  9/12  = 11/12

11/12 —  3/8  =  22/24  - 9/24

=  13/24

Con­tinue read­ing

  

Primary 6 SA1 Revision 2

P6-SA1-Ex 2

Ans:

1–  5 girls

45 kg — 42 kg = 3 kg

Each girl’s aver­age weight increased by 3 kg

60 — 45 = 15 kg

15 kg ÷ 3 kg = 5 girls

Con­tinue read­ing

  

Primary 6 SA1 Revision 1

P6-SA1-Ex 1

Ans:

1–  3

2–  2

Dis­tance –>  Time × Speed

25/60 × 60 = 25 km

 

3–  3

4–  3

Total age –>  2u + 7u = 9u

9/7

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