来自陈天华的问题
【用递等式计算.1240-60×45.5+4.5+12.411×34-5012.56-1.5+2.6.】
用递等式计算.
1240-60×4 5.5+4.5+12.4
11×34-50 12.56-1.5+2.6.
1回答
2020-04-18 01:11
【用递等式计算.1240-60×45.5+4.5+12.411×34-5012.56-1.5+2.6.】
用递等式计算.
1240-60×4 5.5+4.5+12.4
11×34-50 12.56-1.5+2.6.
(1)1240-60×4
=1240-240
=1000;
(2)5.5+4.5+12.4
=10+12.4
=22.4;
(3)11×34-50
=374-50
=324;
(4)12.56-1.5+2.6
=11.06+2.6
=13.66.