Page 230 - Math Genius C3

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2. (a) 8 × 5 = 40 (b) 4 × 11 = 44 (c) 6 × 8 = 48 Mental Maths (Page 99)
3. Multiplication facts Division facts 30
(a) 3 × 4 = 12 12 ÷ 4 = 3 Challenge Question (Page 100)
4 × 3 = 12 12 ÷ 3 = 4
(b) 5 × 10 = 50 50 ÷ 10 = 5 1. 4 ×10 40 ÷4 10 ×3 30 ÷2 15 × 4 60 ×8 480 ÷12
10 × 5 = 50 50 ÷ 5 = 10 0 × 0 20 ÷10 200 ×5 40
(c) 5 × 7 = 35 35 ÷ 7 = 5 2. 39
7 × 5 = 35 35 ÷ 5 = 7 Chapter assessment
(d) 5 × 8 = 40 40 ÷ 8 = 5
8 × 5 = 40 40 ÷ 5 = 8 1. (a) (iii) (b) (iii) (c) (ii)
4. (a) 43 (b) 0 (c) 1 (d) 1 (e) 1 (f) 38 2. (a) F (b) T (c) F (d) T (e) F
5. (a) 4 (b) 4 (c) 7 (d) 6 (e) 3 (f) 3 3. (a) Q = 70, R = 2 (b) Q = 93, R = 3
(g) 9 (h) 10 (c) Q = 321, R = 2 (d) Q = 111, R = 0
6. (a) 8, 3 (b) 5, 5 (c) 8, 1 (d) 6, 2 4. (a) `20 (b) 145 (c) 99 trees (d) `90
think tank (Page 93) (e) 484 km (f) 108,1 (g) 6 bananas
1. 48 2. 962 Maths Fun (Page 102)
Practice time 5C Lion
1. Q = 11, R = 1 2. Q = 11, R = 1 3. Q = 22, R = 0 Chapter 6. Fractions
4. Q = 10, R = 0 5. Q = 111, R = 0 6. Q = 111, R = 1
7. Q = 101, R = 3 8. Q = 211, R = 1 Let’s ReCaLL
think tank (Page 95) 1. Equal parts – a, c; Unequal parts – b, d.
2. (a), (b), (d)
1. 3 7 6 2 5 2. 4 9 8 4 2 4 6 think tank (Page 107)
6 8 4
1 6 1 8 11
1 5 1 6 Fast Check (Page 107)
1 2 4 1. 10 2. 15
2 4 25 25
0 Practice time 6a
3. 7 5 7 4 9 8 2 1
5 6 1.
1 4
1 4 2. Figure Number total Fraction Fraction for
for
number
0 9 of shaded of equal shaded unshaded
parts
parts
0 7
parts parts
2
(a) 3 8 3 5
Practice time 5D 8 8
1. Q = 15, R = 3 2. Q = 17, R = 4 3. Q = 8, R = 3
4. Q = 16, R = 1 5. Q = 16, R = 1 6. Q = 11, R = 4
7. Q = 133, R = 5 8. Q = 158, R = 2 9. Q = 158, R = 5 (b) 3 5 3 2
10. Q = 101, R = 4 11. Q = 78, R = 0 12. Q = 127, R = 2 5 5
13. Q = 64, R = 3 14. Q = 210, R = 1 15. Q = 100, R = 3
16. Q = 124, R = 2 17. Q = 667, R = 0 18. Q = 605, R = 0 (c) 4 8 4 4
19. Q = 1316, R = 0 20. Q = 729, R = 7 8 8
think tank (Page 96) 3. (a) 2 (b) 3 (c) 4 (d) 5
41 packets and 2 pencils left 2 5 4 3
Practice time 5e 4. (a) 10 (b) 8 (c) 5 (d) 7
Dividend Divisor Quotient Remainder 5. 1
1. 50 10 5 0 6
3
8
2. 478 10 47 8 6. (a) 4 8 = 1 2 (b) 14 (c) 12 (d) 10
17
3. 379 10 37 9
4. 1265 100 12 65 Fast Check (Page 109)
5. 4278 100 42 78 1. 2 2. 2 3. 6
6. 8000 100 80 0 4 5 9
think tank (Page 97) think tank (Page 110)
`190 8
2 parts, parts or a whole
Practice time 5F 8
1. 21 2. `275 3. 52, 4 4. 104 5. 106 6. 164 Practice time 6B
7. `147 8. 16, 2 9. `142 10. 15, 8 2. (b) 12 ÷ 2 = 6 (c) 6 ÷ 2 = 3 (d) 14 ÷ 7 = 2
Practice time 5G 1 1 1
1. –, 13 2. +, 29 3. ×, 40 4. ×, 150 5. ÷, 20 2 of 12 = 6 2 of 6 = 3 2 of 14 = 7

228 Mathematics-3