直接写出得数
777×9+111×37= 0.3÷5=﹣
= 42×(
+
)=
×
÷
×
=
×
×7×4= 2.5×9.9×40= 1÷
÷
=
999+99
+9
+
= 17.9﹣(2.5+7.9)=
用简便方法计算,要写出简算过程:
(1)×6.6+2.5×
(2)
﹣
﹣
.
简算.
76×101﹣76 58+39+42+61 4×39×2.5(25×15)×4 25×42×4
125×32 3.6×97+3.6×3 4×25+16×25 36×45+36×56﹣36 68×102
64×15﹣14×15 167+289+33 25×64×125 378+525+75 0.4×25×1.6×25
5×289×2 79×2.5+2.5 4.08÷1.25÷0.8 125×88 87×9.9
101×0.82﹣0.82 25×97+25×3(125+17)×8 66×93+93×33+93+
+
=
1﹣﹣
=
+
+
=
+
﹣
= 1﹣
﹣
=
+2.6+
+0.4
+99×
.
7﹣1.375﹣2
.