A-A+

口算 15+45=2.25+1.75=1-38=12.5×8=1.8÷0.3=6.5÷5=7

2022-08-14 00:39:53 问答库 阅读 200 次

问题详情

口算 1

5

+4

5

=2.25+1.75=1-3

8

=12.5×8=1.8÷0.3=

6.5÷5=7.2÷90=24.8÷8=0.23×20=5.6÷0.8=

5

8

-1

8

=40×0.9=1.63+7=7

10

-3

10

=6.1×0.7=

3

10

+1

30

=20.5-1.5=35÷0.7=2.5×4=3-12

7

=

参考答案

15+45=12.25+1.75=41-38=5812.5×8=1001.8÷0.3=66.5÷5=1.37.2÷90=0.0824.8÷8=3.10.23×20=4.65.6÷0.8=758-18=1240×0.9=361.63+7=8.63710-310=256.1×0.7=42.7310+130=1320.5-1.5=1935÷0.7=502.5×4=103-127=157

考点:口算