如题所述
第1个回答 2023-11-20
25x28
=25x4x7
=100x7
=700
25x28
=25x（20+8）
=25x20+25x8
=500+200
=700
25x28
=5x5x28
=5x140
=700
25x28
=（20+5）x28
=20x28+5x28
=560+140
=700
25x28
=25x（30-2）
=25x30-25x2
=750-50
=700
25x28
=（30-5）x28
=30x28-5x28
=840-140
=700
25x28
=5x5x4x7
=4x5x5x7
=20x35
=700
谢谢，请采纳
=25x4x7
=100x7
=700
25x28
=25x（20+8）
=25x20+25x8
=500+200
=700
25x28
=5x5x28
=5x140
=700
25x28
=（20+5）x28
=20x28+5x28
=560+140
=700
25x28
=25x（30-2）
=25x30-25x2
=750-50
=700
25x28
=（30-5）x28
=30x28-5x28
=840-140
=700
25x28
=5x5x4x7
=4x5x5x7
=20x35
=700
谢谢，请采纳
第2个回答 2023-11-20
25×28
＝28×100÷4
＝28÷4×100
＝700
第3个回答 2023-11-20
25×28
=25×(30-2)
=25×30-2×25
=750-50
=700本回答被网友采纳
=25×(30-2)
=25×30-2×25
=750-50
=700本回答被网友采纳
第4个回答 2023-11-20
25*30-25*2
