Page 14 - 新思维数学活动用书4 样章

1.2 More on negative numbers

2 Here are some temperatures.

4 °C −3 °C 5 °C 0 °C −2 °C

a Which is the warmest temperature?

b Which is the coldest temperature?

3 Look at the number line.

−10 −9 −8 −7 −6 −5 −4 −3 −2 −1 0 1 2 3 4 5 6 7 8 9 10

Write where you would land on the number line after these moves.

start count on end start count back end

a −4 1 b 6 6

start count on end start count back end

c −5 3 d 0 9

4 Circle the larger number in each pair.

Find the difference between the two numbers.

Use the number line to help you.

−10 −9 −8 −7 −6 −5 −4 −3 −2 −1 0 1 2 3 4 5 6 7 8 9 10

a −6 −2 Difference:

b −3 −1 Difference:

c 4 −4 Difference:

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