问题 解答题
脱式计算,能简算的要简算.
50-4.96-26.388.2+0.87-3.525.6-2.8-14.6-8.2
13.94-5.2-4.84.36+1.73+0.64+0.2776.58+(6.75-6.48)
答案

(1)50-4.96-26.38

=50-(4.96+26.38)

=50-31.34

=18.66

(2)8.2+0.87-3.5

=9.07-3.5

=5.57

(3)25.6-2.8-14.6-8.2

=(25.6-14.6)-(2.8+8.2)

=11-11

=0

(4)13.94-5.2-4.8

=13.94-(5.2+4.8)

=13.94-10

=3.94

(5)4.36+1.73+0.64+0.27

=(4.36+0.64)+(1.73+0.27)

=5+2

=7

(6)76.58+(6.75-6.48)

=76.58+0.27

=76.85

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