题目内容
【题目】能简算的要简算
17× | ( + )×32 | × + × | × ×16 |
+ × | 44﹣72× | [ ×( ﹣ )]÷ | ÷( + ) |
×16﹣ ×14+ ×70 | ( + )× |
【答案】①9;②44;③;④
⑤;⑥14;⑦;⑧
⑨9;⑩
【解析】
①17×
=(16+1)×
=16× +1×
=9+
=9
②(+ )×32
= ×32+ ×32
=24+20
=44
③×+×
= ×(+ )
= ×1
=
④ × ×16
= ×( ×16)
= ×2
=
⑤ + ×
= +
= +
=
⑥44﹣72×
=44﹣30
=14
⑦[ ×( ﹣ )]÷
=[ × ]÷
= ÷
=
⑧ ÷( + )
= ÷( + )
= ÷
= ×
=
⑨ ×16﹣ ×14+ ×70
= ×(16﹣14+70)
= ×72
=9
⑩( + )×
= ×+ ×
= +
=
练习册系列答案
相关题目