直接写得数.
698+560=1200﹣909=1.3+0.41=500÷5÷20=
2.7﹣1.58=2.5×0.4=1.4÷3.5=3.65+0.36×0=
452.4÷48.9≈201.2×39≈
=
=
1.65+0.8=3.6﹣0.36=1÷
=8.4+99×8.4=
=
=
=
=
用你喜欢的方法计算
×[1÷(
+
)]42×0.99
1.25×0.32+4%×99(
+
)×12.
脱式计算.
(
+
﹣
)×241634﹣248÷8×20
474.7÷[9.4÷(10.98﹣8.98)]
×[
×(
﹣
)].
计算下题,能简便的要简便计算,并写出必要的过程.
①6.6﹣48×
÷4.8②
×0.6+
÷
③63×
+36×
+75%
④[3.6﹣(
+1÷3)]×
⑤0.008×0.000125+0.0125÷0.04⑥1﹣
﹣
﹣
﹣
.
用简便方法计算.
6×9
+9.2×4
+9
(3.75+4.1+2.35)×9.8.