计算:
4×25+24×5=125×32=﹣
=
+75%=4π×25%=
+
×32=
脱式计算,怎样算简便就怎样算
①600﹣480÷12
②9×÷
③(80﹣9.8)×0.6﹣2.12
④35×(1﹣)÷
⑤3÷[×(
﹣
)]
⑥(1﹣)×(
+
)
0.7×+
×l5+0.7×
+
×l5.
直接写出计算结果:=
=
=
1.25×8×0.4×2.5×99.99=
299×1012+3
﹣3
+1
+1
24.6×4.6+246×0.44+24.6×27+16×
9900÷25÷4×98+
×2
11﹣﹣(
×
+
×
)
+4﹣(
+
)
1999+999×99920.07×1994﹣19.93×2007
0.125×32×2.5 2002×
12﹣2
×3
÷2
0.65×6.4﹣6.5×0.54+65×9%
9999+999
+99
+9
+4
×98+2÷
×8+
×3﹣
35×
+35×
+35×
2.25×1.8+17.5×0.18(+
+
)÷
.