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计算,能简算的要简算. 38.67+68.23+45.8 98.2-37.18-10.82 56.23+31.07-54.1 32.6+58.04+

答案:1  悬赏:50  手机版
解决时间 2021-02-06 17:07
  • 提问者网友:雾里闻花香
  • 2021-02-05 17:08
计算,能简算的要简算. 38.67+68.23+45.8 98.2-37.18-10.82 56.23+31.07-54.1 32.6+58.04+
最佳答案
  • 五星知识达人网友:山有枢
  • 2021-02-05 17:38
(1)38.67+68.23+45.8
=106.9+45.8
=152.7
(2)98.2-37.18-10.82
=98.2-(37.18+10.82)
=98.2-48
=50.2
(3)56.23+31.07-54.1=87.3-54.1
=33.2
(4)32.6+58.04+61.96
=32.6+(58.04+61.96)
=32.6+120
=152.6
(5)100-(28.4+32.05)
=100-60.45
=39.55
(6)5.26+3.1+1.74
=5.26+1.74+3.1
=7+3.1
=10.1
(7)16-7.4-6.6
=16-(7.4+6.6)
=16-14
=2
(8)42.56-0.57-4.43
=42.56-(0.57+4.43)
=42.56-5
=37.56
(9)8.43+2.87+0.57+0.13
=(8.43+2.87)+(0.57+0.13)
=11.3+0.7
=12
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