Tag Archives: SAQ

Primary 4 CA2 Revision 2

P4-CA2-Ex 2

Ans:

1– 152.35

2–  2  1/4

3–  15 013

4–  22   1/50

5–  See below

Qn 5

 

 

 

 

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Primary 6 Prelims Revision 8

P6-Prelims-Ex 8

Ans:

1–  966

Lowest common multiple of 2, 3 and 7 –>  42

999 ÷ 42 = 23 R 33

23 × 42 = 966

 

2–  75%

3–  Thousandths

4–  12– 7

5–  28%

6–  $6000

7–  $2375

8–  94 marks

Total marks for the 3 tests –>  79 marks × 3 = 237

237 – 69 – 74 = 94 marks

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Primary 5 SA1 Revision 5

P5-SA1-Ex 5

Ans:

1–  200 0002 hundred thousands

2–  15 600

3–  298

4–  9

5–  9 : 7

$81 – $18 = $63 (Marianne’s)

Alison   :   Marianne
81       :      63
–>    9     :      7

 

6–  3

15 × 3/10 = 4   1/2

4   1/2 ÷  3/2 = 3

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Primary 4 SA1 Revision 5

P4-SA1-Ex 5

Ans:

1–  Twelve thousand, seven hundred and ninety-eight

2–  2568

3–  1885 / 1886 /1887 /1888/1889/1891/1892/1893/1894

4–  5/9

5–  875

6–  761

        761          ,        12 870     ,     24 969      ,     37 058    ,    49 137
( +12 109)     (+ 12 099)      (+ 12 089 )     (+ 12 079)

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Primary 3 CA1 Revision 5

P3-CA1-Ex 5

Ans:

1–  6854

2–  2664

3– 2790

4–  8791

5–  4000

6480 – 2394 = 4086

80 + 6 = 86

4086 – 86 = 4000

 

6–  9731

8731 + 1000 = 9731

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Primary 6 Speed Level 2 Ex 1

P6-Speed-L2-Ex 1

Ans:

1–  52 km/h

11.25 a.m. to 2.40 p.m. –>  3 h 15 min = 3  1/4 h

169 km ÷ 3  1/4 h = 52 km/h

 

2–  2.4 m/s

Distance between 1st floor and 25th floor –>  24 × 4 = 96 m

96 m ÷ 40 sec = 2.4 m/s

 

3–  60 km/h

Time taken 180 km ÷ 54 km/h = 3  1/3 h = 3 h 20 min

New time –>  3 h 20 min – 20 min = 3 h

180 km ÷ 3 h = 60 km/h

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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 

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Primary 3 SA1 Revision 5

P3-SA1-Ex 5

Ans:

1–  4753

2–  9510

3–  Pages 122 and 123
Qn 3

245 – 1 = 244

244 ÷ 2 = 122

122 + 1 = 123

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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

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Primary 3 SA1 Revision 2

P3-SA1-Ex 2

Ans:

1–  400 / 4 hundreds

2–  710

3–  800

4–  8

4 × 6 = 24

24 ÷ 3 = 8

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