Tag Archives: easy

Primary 3 Money Level 1 Ex 2

P3-Money-L1-Ex 2

Ans:

1–  3

2–  2

3–  3

4–  2

5–  3

6–  4

two 50¢-coins -> $1

three 10¢-coins -> $0.30

six 5¢-coins -> $0.30

Total ->  $1 + $0.30 + $0.30 = $1.60

Con­tinue read­ing

  

Primary 3 Money Level 1 Ex 1

P3-Money-L1-Ex 1

Ans:

1–  1

2–  1

$100 — $ 4 + $96  (amount spent on the comics)

$96 ÷ $8 = 12 comics

 

3–  1

4–  3 Con­tinue read­ing

  

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

Con­tinue read­ing

  

Primary 5 Decimals Level 2 Ex 5

P5-Decimals-L2-Ex5

Ans:

1–  4/25

2–  tenths

3–  2040 g

2.04 × 1000 = 2040 g

 

4–  23.9 cm

5–  40.6 kg  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 4 SA1 Revision 4

P4-SA1-Ex 4

Ans:

1–  3

2–  4

3–  3

4–  4

5–  1

6–  2

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 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

Con­tinue read­ing

  

Primary 3 SA1 Revision 4

P3-SA1-Ex 4

Ans:

1–  2

2–  2

3–  1

4–  1

23 tens –> 230

10 hun­dreds -> 1000

1000 –230 = 770

Con­tinue read­ing