能简算的要简算.
5×999+5+99×7+7+3×9+3+9999×778+333×666
15.6×13.1﹣15.6﹣15.6×2.1[20﹣(90.75÷6.6+2.25)]×11.6.
计算.
①125×64×25②57×99+62③384÷16×32④4673﹣867+567⑤462+3018+238+182.
细心算一算(能用简便的用简便算)
125×25×32283﹣(125+83)
99999×26+33333×2267×12+67×35+67×52+67
100﹣98+96﹣94+92﹣90+…+8﹣6+4﹣2.
用你喜欢的方法计算.
(96﹣16×4)÷220×(70﹣96÷16) 156+185+44+115
35×17+83×354600÷4÷25.
脱式计算:
309×19﹣57125÷1252.3+3.91÷(22﹣19.7)×[
+(
﹣
)]
7777÷+1111÷
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