问题
解答题
用递等式计算.
25×24+125
23×34-58
1500-125×8.
答案
(1)25×24+125
=(25×4)×6+125
=100×6+125
=600+125
=725;
(2)23×34-58
=782-58
=724;
(3)1500-125×8
=1500-1000
=500.
用递等式计算.
25×24+125
23×34-58
1500-125×8.
(1)25×24+125
=(25×4)×6+125
=100×6+125
=600+125
=725;
(2)23×34-58
=782-58
=724;
(3)1500-125×8
=1500-1000
=500.