Multiply and Divide by 10, 100 and 1000

Which one is wrong calculation? (more than one correct answer)

• 34 × 10 = 340

• 0.6 × 10 = 60

• 5.7 × 10 = 57

• 0.003 x × 10 = 0.3

Which one is correct calculation?

• 0.05 × 10 = 5

• 9.09 × 10 = 99

• 71,000 × 10 = 710,000

• 0.52 × 10 = 52

Which one is wrong claculation?

• 902 ÷ 100 = 0.92

• 34 ÷ 100 = 0.34

• 5.7 ÷ 100 = 0.057

• 8900 ÷ 100 = 89

Which one is correct calculation?

• 50.3 ÷ 100 = 0.5003

• 212 ÷ 100 = 2.12

• 9.09 ÷ 100 = 0.099

• 500 ÷ 100 = 0.5

45,000 : 10,000 =

• 45

• 0.45

• 4.5

• 405

2,300 x 10,000 =

• 23,000,000

• 230,000,000

• 2,300.000

• 20,300.000

4.5 : 1,000 =

• 0.45

• 0.045

• 0.0045

• 0.0405

12.3 x 10,000

• 123,000

• 1,230,000

• 120,300

• 12,300

how many m is 2.5 km?

• 25,000 m

• 250,000 m

• 2,500,000 m

• 2,500 m

In which of these problems will the answer be found by multiplying by 100. Calculate the answers. (More than one answer)

• 100 children are each given £1.20. How much money is given out altogether?

• At a school disco, there are 34 litres of lemonade. The 100 children at the disco are each given an equal share. How much lemonade does each child receive?

• Some children lay 100 pencils in a long line. Each pencil is 0.14m long. What is the length of the line of pencils?

• 100 people attend a football match. All tickets are the same price. The total received is £12 500. How much is each ticket?