相关试题
+
=
﹣
=
+
= 1﹣
=
+
=
+
=
﹣
= 1﹣
=直接写出得数．
21+17= 78﹣15= 200+3000= 4500﹣500=
24×2= 40×3= 35×2= 20×6=
36÷3= 48÷4= 27÷9= 80÷4=
+
=
﹣
=
+
= 1﹣
=
直接写出得数．
21+17= 78﹣15= 200+3000= 4500﹣500=
24×2= 40×3= 35×2= 20×6=
36÷3= 48÷4= 27÷9= 80÷4=+=﹣=+= 1﹣=
=
÷15×
=
﹣
）×56=
=
=
=
）×15= 41×100=
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