直接写数对又快!
1322﹣199= 1.87+5.3= 2.5×2.4= 1.5﹣1.5×0.3=
=
+
=
= 2
×2=
直接写出结果.(有近似值符号的只要求估算)
2005+980= 1﹣0.82= 0.22×11= 36÷0.9=
25π≈
+
= 0.25×8.5×4= 4.5×9+4.5=
÷
= 51×98≈
直接写出得数
1546﹣998= 7﹣
= 1÷0.375=
﹣3.67﹣1.33=
1.3÷0.26= 25×32×0.125=
+4.9+
+5.1=(
﹣3.75)×
=
直接写得数.
369+331= 10﹣3.25= 9.3÷0.03=
+
=
3﹣
= 15﹣0÷
= 8﹣
﹣
= 90.5×9+90.5=
直接写出得数:
1000﹣298= 15×(1.4﹣1.4)=
=
×
÷
×
= 400÷25÷4= 3.49+0.61=