怎样简便怎样算1936×93848×474879-413×7979×(9-111)(245+127)-(115+27)12.1-(115+121)×10523×513×2351.8×216+5.49×1310+710×9817÷4+212(1114-57+528)×28+10.1(130+135+1-六年级数学
(2
4 |
5 |
2 |
7 |
1 |
5 |
2 |
7 |
=(2
4 |
5 |
1 |
5 |
2 |
7 |
2 |
7 |
=1
3 |
5 |
=2
3 |
5 |
12.1-(
1 |
15 |
1 |
21 |
=12.1-(
1 |
15 |
1 |
21 |
=12.1-(7+5)
=0.1
23×
5 |
13 |
3 |
5 |
=23×
5 |
13 |
13 |
5 |
=23
1.8×2
=1.8×
=3.9+5.4 =9.3 9×1
=9×(1
=9×2 =18 | |||||||||||||||||||||
=
=
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