1. find multiple of 12 that are between 20 and 70
Solution:
Multiples of 12 between 20 and 70
12 | `xx` | 2 | = | 24 |
12 | `xx` | 3 | = | 36 |
12 | `xx` | 4 | = | 48 |
12 | `xx` | 5 | = | 60 |
Multiples of 12 are `24,36,48,60`
2. find multiple of 8 that are between 20 and 100
Solution:
Multiples of 8 between 20 and 100
8 | `xx` | 3 | = | 24 |
8 | `xx` | 4 | = | 32 |
8 | `xx` | 5 | = | 40 |
8 | `xx` | 6 | = | 48 |
8 | `xx` | 7 | = | 56 |
8 | `xx` | 8 | = | 64 |
8 | `xx` | 9 | = | 72 |
8 | `xx` | 10 | = | 80 |
8 | `xx` | 11 | = | 88 |
8 | `xx` | 12 | = | 96 |
Multiples of 8 are `24,32,40,48,56,64,72,80,88,96`
3. find multiple of 9 that are between 50 and 100
Solution:
Multiples of 9 between 50 and 100
9 | `xx` | 6 | = | 54 |
9 | `xx` | 7 | = | 63 |
9 | `xx` | 8 | = | 72 |
9 | `xx` | 9 | = | 81 |
9 | `xx` | 10 | = | 90 |
9 | `xx` | 11 | = | 99 |
Multiples of 9 are `54,63,72,81,90,99`
This material is intended as a summary. Use your textbook for detail explanation.
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