简便计算.
﹣(
﹣
);
+
+
+
;
+
+
; 1﹣
﹣
﹣
﹣
.
口算.
﹣ = |
+ = |
1﹣ = |
+ = |
+ = |
﹣1= |
﹣ = |
﹣ = |
1﹣ ﹣ = |
﹣ + ﹣ = |
怎样算简便就怎样算.
| 6.24÷4+3.76×0.25 |
16.2×9.9+1.62 |
7.75×[20÷(3.24﹣3.04)] |
| 788÷12.5÷0.8 |
276.4×11﹣276.4 |
25×(4.7+4.7+4.7+4.7) |
直接写得数.
3.52+0.8=
4×0.25=
1﹣0.09=
7.2÷3=
4.3÷0.1=
11.7+1.6﹣11.7+1.6=
2.14×0.3÷2.14×0.3=
脱式计算,能简便的请用简便方法.
| 550﹣36﹣64 |
25×24 |
431﹣297 |
| 35×9×2 |
329+(471+86) |
96×(325﹣295) |