三年级竖式计算
举例子如下：
28.63 − 0.04 = 28.59
104.5 + 18.85 = 123.35
5.235 − 4.495 = 0.74
759 ÷ 33 = 23
867 ÷ 85 = 10.2
630 ÷ 24 = 26.25
999 + 1111 = 2110
123+1289=1412
327+1845=2172
1111 − 199 = 912
70-25=45
123 − 89 = 34
12 × 13 = 156
11 × 67 = 737
99 × 9 = 891
123 × 7 = 861
