1) Multiply 45 by 10. a) 450 b) 500 c) 400 2) What is the product of 12 × 11? a) 121 b) 132 c) 144 3) Estimate the product of 672 × 48 by rounding both numbers to the nearest ten. a) 35,000 b) 30,000 c) 32,000 4) What is 144 × 100? a) 14,400 b) 14,000 c) 14,040 5) Multiply 345 by 432. a) 148,320 b) 150,120 c) 149,040 6) What is 1,234 × 6? a) 7,404 b) 7,524 c) 7,344 7) Estimate the product of 2,457 × 23 by rounding to the nearest hundred. a) 50,000 b) 55000 c) 60000 8) What is 1,345 × 21? a) 28,545 b) 28,245 c) 28,345 9) Estimate the product of 342 × 78 by rounding to the nearest ten. a) 30,000 b) 27,200 c) 26,000 10) What is 512 × 24? a) 12,288 b) 13,288 c) 14,288 11) Multiply 1,120 by 35. a) 39,200 b) 40,500 c) 38,200 12) What is 456 × 123? a) 56,088 b) 56,668 c) 55,888 13) Estimate the product of 6,789 × 15 (nearest 10) by rounding to the nearest thousand. a) 1,36,000 b) 1,40,000 c) 1,68,800 14) A farmer has 235 plants. He plants them in 12 rows. How many plants are there in total? a) 2,820 b) 2,520 c) 2,768 15) Multiply 1,345 by 16. a) 21,840 b) 20,320 c) 21,520

3. Multiplication

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