题目内容

【题目】能简算的要简算

17×

+ ×32

× + ×

× ×16

+ ×

4472×

[ ×

÷ +

×16 ×14+ ×70

+ ×

【答案】①9②44

⑥14

⑨9

【解析】

①17×
=16+1×
=16× +1×
=9+
=9
+ ×32
= ×32+ ×32
=24+20
=44
×+×
= ×+
= ×1
=
× ×16
= ××16
= ×2
=
+ ×
= +
= +
=
⑥44﹣72×
=44﹣30
=14
⑦[ ×
=[ ×
= ÷
=
÷+
= ÷+
= ÷
= ×
=
×16﹣ ×14+ ×70
= ×16﹣14+70
= ×72
=9
+ ×
= ×+ ×
= +
=

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