口算
0×2700= 500×60= 240×3= 12×30=
120×7= 140×60= 60×90= 32×300=
410万+87万= 53万﹣18万= （27+33）×6= 125×4÷4=
口算
0×2700= 500×60= 240×3= 12×30=
120×7= 140×60= 60×90= 32×300=
410万+87万= 53万﹣18万= （27+33）×6= 125×4÷4=
+
=
﹣
= 12×
=
÷3=
=
×
= 0×
=
×
÷
=
=
=
=
=
=
+
=
×52= 1÷
=
=
÷3= 0.32= 20×5.5=
+
=
﹣
=
÷
= 0.37+1.6=
+
=
÷
= 12.6﹣6.06= 201+75=
×
=
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