Question

multiplication and division

1. 13.7 × 2.5 =
2. 200 × 3.58 =
3. 0.00003 × 727 =
4. 5003 ÷ 3.781 =
5. 89 ÷ 9.0 ≈
6. 5000 ÷ 55 ≈
7. 0.00005 × 538 =
8. 6008 ÷ 8.724 ≈
9. 100 × 8.57 =
10. 72 ÷ 7 ≈

Explanation:

Step1: Calculate 13.7×2.5

Multiply 13.7 by 2.5. \(13.7\times2.5 = 34.25\)

Step2: Calculate 200×3.58

Multiply 200 by 3.58. \(200\times3.58 = 716\)

Step3: Calculate 0.00003×727

Multiply 0.00003 by 727. \(0.00003\times727 = 0.02181\)

Step4: Calculate 5003÷3.781

Divide 5003 by 3.781. \(5003\div3.781\approx1323.19\) (rounded to two decimal places)

Step5: Calculate 89÷9.0

Divide 89 by 9.0. \(89\div9.0\approx9.89\) (rounded to two decimal places)

Step6: Calculate 5000÷55

Divide 5000 by 55. \(5000\div55\approx90.91\) (rounded to two decimal places)

Step7: Calculate 0.00005×538

Multiply 0.00005 by 538. \(0.00005\times538 = 0.0269\)

Step8: Calculate 6008÷8.724

Divide 6008 by 8.724. \(6008\div8.724\approx688.67\) (rounded to two decimal places)

Step9: Calculate 100×8.57

Multiply 100 by 8.57. \(100\times8.57 = 857\)

Step10: Calculate 72÷7

Divide 72 by 7. \(72\div7\approx10.29\) (rounded to two decimal places)

Answer:

1. 34.25
2. 716
3. 0.02181
4. ≈1323.19
5. ≈9.89
6. ≈90.91
7. 0.0269
8. ≈688.67
9. 857
10. ≈10.29