您好:
0.125×3.2×2.5 0.55×50.6+0.55×49.4
=(0.128×8)×(2.5×0.4) =0.55×(50.6+49.4)
=1×1 =0.55×100
=1 =55
应用题:
(1) 85×3-124=131(本)
(2) (8+4.9)÷(8+13)≈1.17(米)
(3)954÷1.17≈816(步)
如果对你有帮助,请采纳!祝你学习更上一层楼,数学辅导团为您解决疑问!
您好:
0.125×3.2×2.5 0.55×50.6+0.55×49.4
=(0.128×8)×(2.5×0.4) =0.55×(50.6+49.4)
=1×1 =0.55×100
=1 =55
应用题:
(1) 85×3-124=131(本)
(2) (8+4.9)÷(8+13)≈1.17(米)
(3)954÷1.17≈816(步)
如果对你有帮助,请采纳!祝你学习更上一层楼,数学辅导团为您解决疑问!