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Decimal addition and subtraction column vertical questions?
The vertical themes of the 30 decimal addition and subtraction columns are as follows:

1.27.38+4.83?

Second, 26.75+2.83?

Three. 3.64-2.58

Four. 6.52-3.44

Verb (abbreviation of verb)15.31+13.5438+0

Intransitive verb 27.38+4.83

Seven. 26.75+2.83

Eight. 3.64-2.58

Nine. 6.52-3.44

X. 15.3 1+ 13.5438+0

XI。 5.5+4.5

Twelve. 3.27-2.49

Thirteen. 1 1.65-7.39

Fourteen 19 438+0-7.99

Fifteen. 7.5 1+0.49

Sixteen, 5.5+4.5

Seventeen. 3.27-2.49

18. 1 1.65-7.39

Nineteen. 19 438+0-7.99

Twenty, 7.5 1+0.49

Twenty one. 5.48-3.25

22, 4.8+ 18.9

23, 10.3+58.7

24, 8.03-4.56

Twenty-five 9.03-8.57

26, 5.48-3.25

27,4.8+18.9

28, 10.3+58.7

29, 8.03-4.56

Thirty, 9.03-8.57