问题
计算题
脱式计算。(能简算的要简算) | ||||
|
答案
(1)66.86-8.66-1.34 | |
=58.2-1.34 | |
=56.86 | (2)0.25×16.2×4 |
=4.05×4 | |
=16.2 | |
(3)7.09×10.8-0.8×7.09 | |
=76.57-5.67 | |
=70.9 | (4)(74-3.6)÷2.5÷4 |
=70.4÷2.5÷4 | |
=28.16÷4 | |
=7.04 |
脱式计算。(能简算的要简算) | ||||
|
(1)66.86-8.66-1.34 | |
=58.2-1.34 | |
=56.86 | (2)0.25×16.2×4 |
=4.05×4 | |
=16.2 | |
(3)7.09×10.8-0.8×7.09 | |
=76.57-5.67 | |
=70.9 | (4)(74-3.6)÷2.5÷4 |
=70.4÷2.5÷4 | |
=28.16÷4 | |
=7.04 |