÷= ×= 1.02﹣0.43= 597×8≈
126÷3= 0.25×0.8= 1÷25%= 725÷92≈
①27×4=
②0.72÷0.8=
③
④
⑤
⑥82=
523﹣23×7
4.97+6.38+5.03﹣4.38
60×()
×3.2+5.6×0.5+1.2×50%
()÷
0.23÷0.1=
4﹣0.8=
9÷ =
1÷ - ÷1=
1.6× =
× =
+0.25=
÷ =
(+)×9= 1.5×100= 99×0.8+0.8= 42=
+= 7﹣= ×= ÷=
= = 3.2-﹣1.25= 5÷-÷5=
= 298÷59≈ 400÷125÷8=