直接写上得数:
①25×1.25×32=②1÷
+
=③0.5× =
④12.88+
+
+
=⑤0.8×99+
=⑥
﹣0.01+0.375=
⑦3.6×(1﹣
﹣
)=⑧4.5×101=⑨500×0.2%=
计算下面各题.
(1)递等式计算:
36÷〔(
﹣
)×3〕
(2)解方程:
17.5﹣5(x+0.5)="9x"
(3)简便计算:
(87.2+87.2+87.2×2)×25765×213÷27+765×327÷27.
直接写出结果
①4﹣3.06=②13+14=③125×3×8=④1÷0.25= ⑤100﹣17=
⑥(
﹣
)×20=⑦25﹣5÷20%=⑧13﹣4.7﹣3.3= ⑨
×12+1=⑩
×8+8×
=
合理、灵活地计算
25×1.25×32(
+
)×10×6(
﹣
)÷(4÷
)
[12﹣(11.9﹣8.4×
)]÷1.3
×[
÷(
﹣0.25)].
直接写出得数.
×8=
÷2=
÷
=
×
=
×
=
1÷
=
÷60%=
×15=
﹣
=6.8÷10%=
4.5+
=
×
=
×2=
÷
=
+
=
4×(
+
)= 1÷37.5%=5÷5÷
=32﹣32×
=(
﹣
)×20=