口算:
0×8=
254+500=
1分米+1厘米=
725+400=
600﹣250=
63÷7= 2×9= 737+300= 500+500= 34÷8=
脱式计算
3978÷39+240 1.42×9.2+0.8×1.42 ×(9﹣
÷5)
÷[
×(
﹣
)]
.
7.08÷(1.25×0.8)=﹣
+
=
×
÷
×
=5.38﹣(2.1+2.38)=
(﹣
)×63=0.5×(2.6﹣2.4)=(0.18+0.9)÷0.9=3﹣
﹣
=
脱式计算.(能简算的要简算)
(1)0.125×+1.875÷4(2)27×99
(3)30.1﹣16.8÷3.5×6.2(4)×2.5×
×0.4
(5)÷[
(﹣
)÷
](6)(
﹣
×
)÷
.
计算下面各题,后两题请用简便方法计算.
2+0.45÷0.9﹣;
÷[
×(
﹣
)];
93+1.06++2.94;
3.78×6.2+3.78×3.8.
递等式计算(能简算的要简算)+
+
+
(
﹣
)×24
﹣8÷8×
×[
﹣(
﹣
)]
÷
×(
﹣
)6÷[
×(
﹣
)].