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简介:
一、小数加、减法混合运算。
18.43+12.57-13.8
=31-13.8
=17.2
29.92-3.88+12.6
=26.04+12.6
=38.64
16.62+12.38+13.21
=29+12.21
=41.21
25.48+23.83-22.86-20.3
=49.31-22.86-2.3
=26.45-2.3
=24.15
57.33-12.96+32.5
=44.37+32.5
=76.89
56.37-39.24-11.03
=17.13-11.03
=6.1
24.52+50.18-32.15
=74.7-32.15
=42.55
16.6-5.37+22.11-12.3
=11.23+22.11-12.6
=33.34-12.3
=21.04