Page 12 - 新思维数学学生用书2 样章
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1.1 Numbers to 100
Exercise 1.1
1 Write the missing numbers.
2 6 = 0 +
= 5 0 + 8
= 8 0 + 4
Worked example 1
This is a row from the 100 square.
21 25 30
Write the missing numbers.
Count on in ones. Count on in ones.
21, 22, 23, 24, 25. 25, 26, 27, 28, 29, 30.
Answer: 21 22 23 24 25 26 27 28 29 30
The ones change when
I count. There are always two
tens until I count to 30.
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