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87乘以165列竖式计算

87 × 165 = 14355 竖式见图:

数学没学好,处处有烦恼

87 × 165 = 14355 竖式见图:

①404-186≈200404-186=218②755+165≈1000755+165=920③800-502≈300800-502=298验算:④676+225≈900676+225=901验算:

404-186=218验算:755+165=920验算:826-459=367验算:.

(1)404-186=218, ?4?04?186 .218验算: 218+186 .404(2)755+165=920, 755+165 .920验算: 165+755 .920(3)58÷8=7…2, 7858 56 2(4)57÷6=9…3. 9657 54 3

(1)583×15=8745.答:583的15倍是8745.(2)164×43=7052;7052-599=6453.答:164乘43的结果是7052,再减去599,结果是6453.(3)52×165-162=8580-162=8418.答:52的165倍比162多8418.

(1)416-241=175答:这个数是175.(2)136-98=38答:38与98的和是136.(3)76×9+165=684+165=849答:和是849.

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