如题所述
第1个回答 2021-12-29
98×84
=(100-2)×84
=100×84-2×84
=8400-168
=8232
=(100-2)×84
=100×84-2×84
=8400-168
=8232
第2个回答 2021-12-29
98×84
=(100-2)×84
=100×84-2×84
=8400-168
=8232
=(100-2)×84
=100×84-2×84
=8400-168
=8232
第3个回答 2021-12-29
98*84的简便运算!
=100*84-2*84
=8400-168
=8232
=100*84-2*84
=8400-168
=8232
第4个回答 2021-12-29
98x84的简便计算式:
(98+2)x84-(2x84)
=100x84-186
=8400-186
=8214
(98+2)x84-(2x84)
=100x84-186
=8400-186
=8214
第5个回答 2021-12-29
98×84
=(100-2)×84
=100×84-2×84
=8400-168
=8232
=(100-2)×84
=100×84-2×84
=8400-168
=8232