Further Description:
Work out the following without using a calculator:
1. 36 x 17
2. 84 x 22
3. 132 x 45
4. 188 x 71
5. 215 x 32
6. If a box contains 315 cards and there are 24 boxes, how many cards are there in total?
7. 168 ÷ 4
8. 336 ÷ 12
9. If there are 840 chocolate bars put into 12 boxes, how many chocolate bars are there in each box?
