如题所述
解:7Ⅹ9÷7X9等于( 81 )
∵已知需求出7Ⅹ9÷7X9等于多少
∴7 Ⅹ 9 ÷ 7 X 9
= 7 × 9 × 1/7 × 9
= 7 × 1/7 × 9 × 9
= (7 × 1/7)× (9 × 9)
= 1 × 81
= 81
答:7Ⅹ9÷7X9等于81
∵已知需求出7Ⅹ9÷7X9等于多少
∴7 Ⅹ 9 ÷ 7 X 9
= 7 × 9 × 1/7 × 9
= 7 × 1/7 × 9 × 9
= (7 × 1/7)× (9 × 9)
= 1 × 81
= 81
答:7Ⅹ9÷7X9等于81
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第1个回答 2020-09-18
7×9÷7×9
=7÷7×9×9
=1×9×9
=81
=7÷7×9×9
=1×9×9
=81