Page 7 - 新思维数学活动用书2 样章
P. 7
1 Numbers to 100
1.1 Numbers to 100 column digit
Exercise 1.1 place holder
representation row
Focus
1 Write the missing numbers.
2 3 = 0 +
= 4 0 + 9
2 Write the missing numbers.
21 25 30
51 55 60
6
