小学数学五年级上册脱式计算题简便运算练习
玛丽莲梦兔
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2021年01月30日 02:51
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能简算的要简算
31.5×
4÷
(6+3)
=
=
=
30.8÷
[14
－
(9.85
＋
1.07)]
=
=
=
=
[60
－
(9.5
＋
28.9)]÷
0.18
=
=
=
=
0.8×
〔
15.5-(3.21+5.79)
〕
=
=
=
2.881÷
0.43
－
0.24×
3.5
=
=
=
=
20×
[(2.44
－
1 .8)÷
0.4
＋
0.15]
=
=
=
=
=
28-(3.4+1.25×
2.4)
=
=
=
2.55×
7.1+2.45×
7.1
=
=
.
=
0.78+5.436+1
=
=
4.07×
0.86+9.12.5
=
=
30.8÷
[14
－
(9.85
＋
1.07)]
=
=
=
777×
9+111×
3
=
=
=
（
31.8+3.2×
4
）
÷
5
=
=
=
=
0.64×
25×
7.8+2.2
=
=
=
2÷
2.5+2.5÷
2
=
=
=
194
－
64.8÷
1.8×
0.9
=
=
=
36.72÷
4.25×
9.9
=