算一算．
12×5= 8×2+4= 5×700= 604×3=
9×5+5= 120×5= 3+7×7= 505×2=
107×8= 8+2×9= 10×3×2= 7×6×2=
9×2×3= 7+6×9= 4×5×2=
算一算．
12×5= 8×2+4= 5×700= 604×3=
9×5+5= 120×5= 3+7×7= 505×2=
107×8= 8+2×9= 10×3×2= 7×6×2=
9×2×3= 7+6×9= 4×5×2=
= 1﹣
=
+
=
= 2.5×16=
的
是多少？
=（2）8+
×0=（5）
×1=
×
=（7）
×
=（8）2
×6=（9）1
×4=（10）4
×3=
×
×
×
×
×
×
×
×
．
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=
=
=
=
=
=
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