7.5-0.3-2.7=
答案:
0.3+2.7=3,7.5-3=4.5
5.32-1.32+74.3=
答案:
5.32-1.32=4,4+74.3=78.3
0.7+8.1-8.7=
答案:
0.7+8.1=8.8,8.8-8.7=0.1
3.4+0.5-0.7=
答案:
3.4+0.5=3.9,3.9-0.7=3.2
8.53-2.53+72.5=
答案:
8.53-2.53=6,6+72.5=78.5
5.21-1.21+6.24=
答案:
5.21-1.21=4,4+6.24=10.24
6.51-4.51+6.75=
答案:
6.51-4.51=2,2+6.75=8.75
1.1+0.7-0.8=
答案:
1.1+0.7=1.8,1.8-0.8=1.0
0.3+8.2-8.3=
答案:
0.3+8.2=8.5,8.5-8.3=0.2
8.8-3.1-3.9=
答案:
3.1+3.9=7,8.8-7=1.8
9.2-0.5-4.5=
答案:
0.5+4.5=5,9.2-5=4.2
7.5-0.4-6.5=
答案:
7.5-6.5=1,1-0.4=0.6
1.1+0.3-0.7=
答案:
1.1+0.3=1.4,1.4-0.7=0.7
0.1+0.6+0.29=
答案:
0.1+0.6=0.7,0.7+0.29=0.99
0.1+0.9+0.21=
答案:
0.1+0.9=1,1+0.21=1.21
0.4+0.8+0.39=
答案:
0.4+0.8=1.2,1.2+0.39=1.59
8.52-3.52+56.6=
答案:
8.52-3.52=5,5+56.6=61.6
8.72-5.72+2.36=
答案:
8.72-5.72=3,3+2.36=5.36
6.31-2.31+71.5=
答案:
6.31-2.31=4,4+71.5=75.5
3.3+0.5-0.7=
答案:
3.3+0.5=3.8,3.8-0.7=3.1
0.25+0.1+0.9=
答案:
0.1+0.9=1,0.25+1=1.25
2.6+1.5+3.5=
答案:
1.5+3.5=5,2.6+5=7.6
9.6-0.9-6.1=
答案:
0.9+6.1=7,9.6-7=2.6
8.54-1.54+54.4=
答案:
8.54-1.54=7,7+54.4=61.4
7.4-0.9-2.2=
答案:
0.9+2.2=3.1,7.4-3.1=4.3
9.9-0.9-7.4=
答案:
9.9-0.9=9,9-7.4=1.6
5.5+0.6-0.7=
答案:
5.5+0.6=6.1,6.1-0.7=5.4
0.5+0.7+0.45=
答案:
0.5+0.7=1.2,1.2+0.45=1.65
6.32-1.32+38.4=
答案:
6.32-1.32=5,5+38.4=43.4
9.6-0.3-3.7=
答案:
0.3+3.7=4,9.6-4=5.6
6.52-3.52+75.4=
答案:
6.52-3.52=3,3+75.4=78.4
8.61-5.61+8.77=
答案:
8.61-5.61=3,3+8.77=11.77
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