比一比，看谁先到家．
23+17= 3600÷40= 117×2×5=
45×40= 9+7+3+11= 77+63+23=
（10+25）×6= 6×125×8= 5×16+5×84=
25×16= 180×2= 78+22=
比一比，看谁先到家．
23+17= 3600÷40= 117×2×5=
45×40= 9+7+3+11= 77+63+23=
（10+25）×6= 6×125×8= 5×16+5×84=
25×16= 180×2= 78+22=
=
=
=
=
=
=
=
=
×
=
÷6=
÷7= 42×
= 6÷
=
×33=
÷
=
+
= 10÷1%=
﹣
= 24×50%=
= 15
=
=
=
=
=
=
=
=
=
=
×
= 1÷
= 4×60%= 0.875÷0.125=
=
×3.6= 0×
=
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