脱式计算,能简算得要简算.
5.46÷3.9+4.5×2.3
4.23×9.9+0.423
2.58﹣(3.5﹣2.4)
78÷0.25÷0.4.
(1)3.72×3.5+62.8×0.35
(2)9.9×8.6+0.86
(3)15.02﹣6.8﹣1.02﹣3.2
(4)725÷0.125÷0.25÷32
(5)8888888×77777777÷1111111÷2222222﹣9999999÷3333333.
64×2.5×0.125 3×0.8+3×2.2 3.76÷0.4÷2.5
(14.21+3.5)÷7 4.66×0.28+4.66×0.82﹣4.66 2.4+57.6÷36.
用递等式计算:(能简算的要简算)
(1)21.36÷0.8﹣12.9 (2)15.4×103﹣1.54×30
(3)29.61÷9.4×1.4 (4)(16.2﹣0.54)÷1.8.
直接写出得数.
0.001+10.099= 100﹣0.19= 3.9×0.01= 0.22=
0.5+0.5÷0.5= 32.5÷(2.5×0.4)= 3×3÷3×3= 3.16÷0.1÷0.1=
①8(2x+2.6)=32
②1.25×3.2×2.5
③4.6×2.89+6.11×4.6+4.6
④1995×1995+1994×1994﹣1995×1994﹣1994×1993.
计算下面各题,能简便的要写出简便运算过程.
①0.75×2.8+0.75×7.2
②1.01×101﹣1.01
③40.4×2.5
④45.8﹣2.72÷0.8×12.5
⑤(2.83+7.17)÷(1﹣0.9)
脱式计算.你是最棒的!
6.5×8+3.5×8﹣44 8.5+(5.6﹣4.8)×13 1.9﹣1.9×(1.9﹣1.9)×29+
×29+29 1×
÷
×
×101﹣
49.5×﹣(50﹣
)×0.6
×
+
÷
+
÷[
×(1﹣
)]
897×﹣37.5%+104×0.375 [
+
×(
﹣0.375)]÷
+
+
+
+
﹣(
+
)
试题篮
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