如题所述
第1个回答 2021-01-31
97x225+5x35
=(100-3)x225+175
=100x225-3x225+175
=22500-675+175
=22500-(675-175)
=22500-500
=22000
=(100-3)x225+175
=100x225-3x225+175
=22500-675+175
=22500-(675-175)
=22500-500
=22000
第2个回答 2021-01-31
第3个回答 2021-01-31
解:97×225+5×35
=(100-3)×225+5×35
=22500-675+175
=22500-(675-175)
=22500-500
=22000
=(100-3)×225+5×35
=22500-675+175
=22500-(675-175)
=22500-500
=22000
第4个回答 2021-01-31
97×225+5×35
=97×(5×45)+5×35
=4365×5+5×35
=5×(4365+35)
=5×4400
=22000
=97×(5×45)+5×35
=4365×5+5×35
=5×(4365+35)
=5×4400
=22000
第5个回答 2021-01-31
97×225+5×35
=(100-3)×225+175
=100×225-3×225+175
=22500-675+175
=22500-500
=22000
=(100-3)×225+175
=100×225-3×225+175
=22500-675+175
=22500-500
=22000