Here are the solutions for the column multiplication problems. I have worked through each one step-by-step to ensure accuracy.
1. $85 \times 64$
* $85 \times 4 = 340$
* $85 \times 60 = 5100$
* $340 + 5100 = 5440$
2. $97 \times 35$
* $97 \times 5 = 485$
* $97 \times 30 = 2910$
* $485 + 2910 = 3395$
3. $63 \times 72$
* $63 \times 2 = 126$
* $63 \times 70 = 4410$
* $126 + 4410 = 4536$
4. $28 \times 27$
* $28 \times 7 = 196$
* $28 \times 20 = 560$
* $196 + 560 = 756$
5. $35 \times 92$
* $35 \times 2 = 70$
* $35 \times 90 = 3150$
* $70 + 3150 = 3220$
6. $46 \times 57$
* $46 \times 7 = 322$
* $46 \times 50 = 2300$
* $322 + 2300 = 2622$
7. $98 \times 46$
* $98 \times 6 = 588$
* $98 \times 40 = 3920$
* $588 + 3920 = 4508$
8. $53 \times 87$
* $53 \times 7 = 371$
* $53 \times 80 = 4240$
* $371 + 4240 = 4611$
9. $74 \times 36$
* $74 \times 6 = 444$
* $74 \times 30 = 2220$
* $444 + 2220 = 2664$
10. $84 \times 77$
* $84 \times 7 = 588$
* $84 \times 70 = 5880$
* $588 + 5880 = 6468$
11. $39 \times 44$
* $39 \times 4 = 156$
* $39 \times 40 = 1560$
* $156 + 1560 = 1716$
12. $68 \times 37$
* $68 \times 7 = 476$
* $68 \times 30 = 2040$
* $476 + 2040 = 2516$
Final Answer:
1. 5440
2. 3395
3. 4536
4. 756
5. 3220
6. 2622
7. 4508
8. 4611
9. 2664
10. 6468
11. 1716
12. 2516
Parent Tip: Review the logic above to help your child master the concept of gr 4 maths worksheets.