用简便方法计算. 15×24×25 25×5×4×40 800÷5÷4 560÷(5×7)
15×24×25, =24×25×15, =600×15, =9000; 25×5×4×40, =(25×4)×(40×5), =100×200, =20000; 800÷5÷4, =800÷(5×4), =800÷20, =40; 560÷(5×7), =560÷7÷5, =80÷5, =16. |
温馨提示:答案为网友推荐,仅供参考
用简便方法计算. 15×24×25 25×5×4×40 800÷5÷4 560÷(5×7)
15×24×25, =24×25×15, =600×15, =9000; 25×5×4×40, =(25×4)×(40×5), =100×200, =20000; 800÷5÷4, =800÷(5×4), =800÷20, =40; 560÷(5×7), =560÷7÷5, =80÷5, =16. |
本站内容来自于网友发表,不代表本站立场,仅表示其个人看法,不对其真实性、正确性、有效性作任何的担保
相关事宜请发邮件给我们
© 非常风气网