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①384+218=
②758-365=
③*280+376=
④600-386=
⑤804-397=
⑥ *528+275=
⑦523-386 +465 =
⑧287 +436-587=
⑨912-346-289=
2012+705= 603×39≈ 2÷0.02= 0×0.54=
1﹣ + = 32×25%= × = ÷ =
+234=500 29+=110 573-=170
-232=40 +153=300 -500=300
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