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1 ÷0.15= 4.6+4= 3- =
2013+67= 63= 10.1-1=
= ×2÷ ×2=
1 489×52500 306+432800
+ = + = ﹣ = 1﹣ =
+ = 700×4= 62﹣36= 700+300=
123×2= 486+14=
①340+93=
②503﹣108=
③755﹣165=
④79×4=
⑤380×5=
⑥205×7=
①368+485=
②175+628=
③△306﹣177=
④684﹣319=
⑤725﹣548=
⑥△239+574=
⑦190+570=
⑧800﹣360=
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