Page 22 - 新思维数学学生用书3 样章
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1.3 Estimating and rounding
Check your progress
1 Complete these pieces, which are from a 1 to 1000 number strip.
765
384
2 What is the value of the ringed digit in each 3-digit number?
56 7 7 29
6 7 4 92 3
8 88 4 4 4
3 Write the missing numbers.
Number Round to the nearest 10 Round to the nearest 100
234
471
896
750
303
987
21
