Page 32 - Genius PBD - Mathematics Year 3

Mathematics Year 3 Answers

21. (a) 9 800 3. (a) 4 (b) 6
A factory sends sugar to 4 supermarkets. Each 1 × 2 = 2 2 × 3 = 6
supermarket receives 2 450 packets of sugar. 2 × 2 4 3 × 3 9
The total number of sugar sent is 9 800 packets. (c) 3
(b) 1 229 remainder 3 2 3 = 4 ÷ 2
6 ÷ 2
6 148 chicken eggs were distributed to 5 bakeries
in equal amounts. Each bakery received 1 229 4. (a) 3 3
6 ÷ 2
eggs and the remainder were 3 eggs. 10 ÷ 2 = 5
(c) 90
There are 450 Year 6 pupils in a school. Puan (b) 1
Hani divided them into 5 sport houses. Each 3
sport house has 90 pupils. 3 ÷ 3 = 1
(d) 700 9 ÷ 3 3
A newspaper delivery boy delivers 100 (c) 2 1
newspapers. In a week, he delivers 700 4 ÷ 4 1
newspapers in total. 8 ÷ 4 = 2
Any other reasonable answers can be accepted for 9 2
Question 21. 5. (a) (b) 1
4 3
22. (a) 10 000 lemons (c) 19 (d) 2 3
(b) 2 765 yellow cards 5 7
(c) (i) 50 soap bars 7 1
(ii) remainder of 21 soap bars 6. (a) 9 (b) 2
23. (a) Unknown: The number of orange boxes. (c) 2 (d) 4
Mathematical sentence: × 24 = 96 3 5
(b) Unknown: The number of Maya’s friends. 7. (a) 1 (b) 1
Mathematical sentence: 49 ÷ = 7 3 2
(c) Unknown: The number of books to be discarded. (c) 1 (d) 1
Mathematical sentence: ÷ 100 = 75 8. 6 2
(d) Unknown: The number of shoe racks.
Mathematical sentence: 238 × = 1 428

PROGRESSIVE TEST 1
9. (a) (b)
Section A
1. C 2. D 3. A 4. C 5. C
6. B 7. C 8. C 9. B 10. C

Section B
1. (a) 3 421, 3 415, 3 409 10. (a) zero point one four
(b) 3 410 (b) 0.42
2. (a) Number of jars; 2 800 ÷ = 50 (c) zero point seven nine
(b) 2 695 (d) zero point zero eight
(e) 0.56
UNIT 3 Fractions, Decimals and Percentages 11. (a) 0.48; zero point four eight
(b) 0.32; zero point three two
3 2 12. (a) (b)
1. (a) (c)
5 3
(b) one over four
2. (a) (b)

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