问题
解答题
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答案
①24×
=4; ②72×1 6
=56; ③12÷7 9
=30; ④2 5
÷3=51 5
;17 5
⑤3÷
=7 10
; ⑥0÷30 7
=0; ⑦1-11 4
÷2 3
+2 3
=1 3
; ⑧1 3
×5 7
÷5 7
×5 7
=5 7
.25 49