Tag Archives: Primary 4

Primary 4 July Problem Sums 2

P4-July-PSP-Ex 2

Ans:

1–  $144

1/2 u –> $36

1u –>  $36 × 2 = $72

$72 × 2 = $144

 

2–  $487.80

3–  6  4/5 kg

4–  2637 more seashells
Qn 4

7u –>  6328 — 623 = 5705

1u –> 815

Jan­ice –>  815 × 7 = 4075 seashells

Car­o­line –>  815 + 623 =1438 seashells

4075 — 1438 =  2637 more seashells

Con­tinue read­ing

  

Primary 4 July Review 1

P4-Jul-Review 1

Ans:

1–  4

2–  2

3–  3

4–  4

5–  1

16/56 =  2/7 

 

6–  2
Qn 6

Con­tinue read­ing

  

Primary 4 June Problem Sums 1

P4-Jun-PSP-Ex1

Ans:

1–  1120 stick­ers
Qn1

9u –>  1260 stickers

1u –>  140 stickers

8u –>  140 × 8 = 1120 stick­ers

 

2–  $28 125

Total num­ber of TV sets sold –>  15 × 5 = 75

$375 × 75 = $28 125 

 

3–  a ->  4 ostriches  ,   b ->  76 more legs

Qn3

 

84 — 8 = 76 more legs   (b)

Con­tinue read­ing

  

Primary 4 May Review 4

P4-May-Review 4

Ans:

1–  3

2–  4

3–  4

5/10 + 7/10 = 12/10 = 1  2/10  = 1  1/5

 

4–  4

4  1/2  = 9/2 =  27/6

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 4 SA1 Revision 3

P4-SA1-Ex 3

Ans:

1–  $656

Total cost of both items ->  $5845 + $3499 = $9344

$10 000 — $9344 = $656

 

2–  $1632
Qn 2

$272 ÷ 4 = $68 ( Ryan)

$68 × 3 = $204 (Stephen)Visit Site

$204 × 8 = $1632

 

3–  36 boys

3/4 of boys is equal to 1/7 of girls    (make the numer­a­tor common)

3/4 of boys is equal to 3/21 of girls

boys –> 4u

girls -> 21u

4u + 21u = 25u

25u –>  225 children

1u –>  9 children

4u –>  4 × 9 = 36 boys

Con­tinue read­ing

  

Primary 4 SA1 Revision 2

P4-SA1– Ex 2

Ans:

1–  1402

2–  1, 2 and 4

3–  70 0007 ten thousands

4–  5099

4649   ,   4799   ,   4949   ,   ___5099 __  ,   5249
(+150)       (+150)    (+150)                    (+150)

Con­tinue read­ing

  

Primary 4 SA1 Revision 1

P4-SA1-Ex 1

Ans:

1–  2

2–  3

3–  4

7 × 8 = 56

56 + 5 = 81

Con­tinue read­ing

  

Primary 4 April Problem Sums 5

P4-PSP-Apr-Ex5

Ans:

1–  2822 peo­ple

243 × 4 = 972 men

972 + 243 = 1215 adults

1215 + 392 = 1607 children

1607 + 1215 = 2822 peo­ple

 

2–  131 coins

2389 + 2531 = 4920 ( total num­ber of coins)

Qn 2

4920 — 120 = 4800

4800 ÷ 2 = 2400 ( Num­ber of coins in Box B at the end)

2531 — 2400 = 131 coins

 

3–  $1368

One blouse –>  $19 × 3 = $57

$57 × 24 = $1368

Con­tinue read­ing

  

Primary 4 Graphs Level 2 Ex 3

P4-Graphs-L2-Ex3

Ans:

1–  40 scoops

180 — 140 = 40 scoops

 

2–  $320 

$160 × 2 = $320 

 

3–  275 sticks

4–  Fri­day and Saturday

5–  20 cm

6–  Day 2 to Day 3

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