直接写得数
40×80= 0×560= 180×2= 56÷9=
630÷7= 250÷50= 136+32= 125﹣25=
12×40= 16×6= 480÷80= 900÷30=
5600÷70= 15×6= 34×40= 17×3=
相关试题
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49÷7= 74﹣47= 985×0= 300×4=
300+1070= 48÷5= 4×3+2= 5×8﹣7=
510×7≈ 48×5≈ 397×3≈ 121×4≈
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