Here are the step-by-step solutions for each multiplication problem. I have broken them down so you can see how the numbers are calculated.
1. $458 \times 79$
* First, multiply by 9: $458 \times 9 = 4,122$
* Next, multiply by 70: $458 \times 70 = 32,060$
* Add them together: $4,122 + 32,060 = 36,182$
2. $824 \times 37$
* First, multiply by 7: $824 \times 7 = 5,768$
* Next, multiply by 30: $824 \times 30 = 24,720$
* Add them together: $5,768 + 24,720 = 30,488$
3. $715 \times 97$
* First, multiply by 7: $715 \times 7 = 5,005$
* Next, multiply by 90: $715 \times 90 = 64,350$
* Add them together: $5,005 + 64,350 = 69,355$
4. $187 \times 85$
* First, multiply by 5: $187 \times 5 = 935$
* Next, multiply by 80: $187 \times 80 = 14,960$
* Add them together: $935 + 14,960 = 15,895$
5. $936 \times 94$
* First, multiply by 4: $936 \times 4 = 3,744$
* Next, multiply by 90: $936 \times 90 = 84,240$
* Add them together: $3,744 + 84,240 = 87,984$
6. $694 \times 89$
* First, multiply by 9: $694 \times 9 = 6,246$
* Next, multiply by 80: $694 \times 80 = 55,520$
* Add them together: $6,246 + 55,520 = 61,766$
7. $418 \times 45$
* First, multiply by 5: $418 \times 5 = 2,090$
* Next, multiply by 40: $418 \times 40 = 16,720$
* Add them together: $2,090 + 16,720 = 18,810$
8. $624 \times 96$
* First, multiply by 6: $624 \times 6 = 3,744$
* Next, multiply by 90: $624 \times 90 = 56,160$
* Add them together: $3,744 + 56,160 = 59,904$
9. $519 \times 82$
* First, multiply by 2: $519 \times 2 = 1,038$
* Next, multiply by 80: $519 \times 80 = 41,520$
* Add them together: $1,038 + 41,520 = 42,558$
10. $743 \times 72$
* First, multiply by 2: $743 \times 2 = 1,486$
* Next, multiply by 70: $743 \times 70 = 52,010$
* Add them together: $1,486 + 52,010 = 53,496$
11. $336 \times 44$
* First, multiply by 4: $336 \times 4 = 1,344$
* Next, multiply by 40: $336 \times 40 = 13,440$
* Add them together: $1,344 + 13,440 = 14,784$
12. $816 \times 93$
* First, multiply by 3: $816 \times 3 = 2,448$
* Next, multiply by 90: $816 \times 90 = 73,440$
* Add them together: $2,448 + 73,440 = 75,888$
Final Answer:
1. 36,182
2. 30,488
3. 69,355
4. 15,895
5. 87,984
6. 61,766
7. 18,810
8. 59,904
9. 42,558
10. 53,496
11. 14,784
12. 75,888
Parent Tip: Review the logic above to help your child master the concept of worksheet for multiplication.
