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102 85竖式并验算

102*85=8670,验算:8670÷102=85

102x85=8670 验算:8670÷85=102

验算:8670÷102=85

102*85=8670

102*85=(100+2)*85=100*85+2*85=8500+170=8670

85*102=8670竖式:

102 85---- 510 816-------- 8670

102*8=(100+2)*8=100*8+2*8=800+16=816

102*58=5916验算;5916除以58=102仅供参考

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