Divide each of these numbers by 100. 60
2
7500 5000 1200 4200 1800
3 Write calculations you use to solve each problem. (a) A tower is 3200 cm high. A flower is 100 times as short. What is the height of the flower? cm (b) The cost of a cap is $15. The cost of a computer is 100 times as much. What is the cost of the computer? $ 4 Complete these. What do you notice? Explain why. (a) 7 × 100 (b) 70 × 10 (c) 2500 ÷ 100 (d) 250 ÷ 10
Use a calculator to multiply 2-digit numbers by 100. Can you predict the answer before you press the ‘=’ button? Write about any patterns you notice.
How do you think the digits will move as a result of multiplying numbers by 1000? Try out some ideas using the numbers 1 to 10 as your starting numbers. Use a place value chart to show what you find out. Check your answers on a calculator.
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04/05/2022 15:50
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