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3× = ÷2= × = ÷ = 0.6÷ =
6÷ = ×1.5= -0.2= ÷0.25= 0.45÷ =
①1- ÷2.5
② ×(15- )
③ ÷( + )
④3-1÷ ×
⑤2-1.5× +
⑥0.12÷ +0.13×
21× = 12÷ = 5.6× = + =
10-0.5= ÷9= - = × =
10÷ × = 4+1÷ =
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