236+664= 50÷0.5= 0.625×24= 1÷20%=
0.5×30%= 700-188= 9.6-3.06= 2.5×32=
- = × = ÷ 4.8÷ =
996-508≈ 3192÷72≈ ÷2×0= ×4÷ ×4=
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