211*555+445*789+555*789+211*455
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/19 17:31:40
211*555+445*789+555*789+211*455211*555+445*789+555*789+211*455211*555+445*789+555*789+211*455211*555
211*555+445*789+555*789+211*455
211*555+445*789+555*789+211*455
211*555+445*789+555*789+211*455
211*555+445*789+555*789+211*455
=555*(211+789)+445*(789+211)
=555000+445000
=1000000
211*555+445*789+555*789+211*455
=555*(211+789)+445*(789+211)
=555000+445000
=1000000
211×555+445×789+555×789+211×445简算
211×555+445×789+555×789+211×445
211×555+445×789+555×789+211×445
211*555+445*789+555*789+211*455
数学题211x555+445x789+555x789+211x445要用简便方法的:211x555+445x789+555x789+211x445
1.计算:(1)211×555+445×789+555×789+211×445 (2)S=1-2+3-4+...+(-1)n+1的乘方·n2.小明到父亲经营的小超市参加社会实践活动.一天小明随父亲从银行换回来58张共计200的零钞,用于顾客付款时找零.
555
555~
555
555,
555
555
555 .
555
..555
简便方法计算:555^2-445^2
555*1599+789简算方法
555+520+789+100-100=?