4.28ᠧ3.6+6.1ᠧ4.28+9.7ᠧ5.72的简便运算

2025-06-24 18:40:37
推荐回答(1个)
回答1:

解:原式=4.28x(3.6+6.1)+9.7x5.72
=4.28x9.7+9.7x5.72
=9.7x(4.28+5.72)
=9.7x10
=97