7.64+13.3-2.64=
答案:
(7.64-2.64)+13.3=5+13.3=18.3
71-1.1-48.9=
答案:
71-(1.1+48.9)=71-50=21
7.01+6.3-0.31=
答案:
(7.01-0.31)+6.3=6.7+6.3=13
6.71-0.09-3.91=
答案:
6.71-(0.09+3.91)=6.71-4=2.71
7.63-4.54-0.46=
答案:
7.63-(4.54+0.46)=7.63-5=2.63
0.97+0.04+0.16=
答案:
0.97+(0.04+0.16)=0.97+0.2=1.17
8.51+6.57-4.51=
答案:
(8.51-4.51)+6.57=4+6.57=10.57
0.23+0.43+0.57=
答案:
0.23+(0.43+0.57)=0.23+1=1.23
5.43+31.2-1.43=
答案:
(5.43-1.43)+31.2=4+31.2=35.2
0.05+0.38+0.15=
答案:
(0.05+0.15)+0.38=0.2+0.38=0.58
65.8-3.3-36.7=
答案:
65.8-(3.3+36.7)=65.8-40=25.8
81.2-5.7-54.3=
答案:
81.2-(5.7+54.3)=81.2-60=21.2
8.55-7.62-0.38=
答案:
8.55-(7.62+0.38)=8.55-8=0.55
9.77-0.37-6.63=
答案:
9.77-(0.37+6.63)=9.77-7=2.77
7.93-0.36-5.93=
答案:
(7.93-5.93)-0.36=2-0.36=1.64
0.42+7.02+2.48=
答案:
0.42+(7.02+2.48)=0.42+9.5=9.92
88.2-78.4-1.6=
答案:
88.2-(78.4+1.6)=88.2-80=8.2
2.4+7.8+4.6=
答案:
(2.4+4.6)+7.8=7+7.8=14.8
89.8-7.9-69.8=
答案:
(89.8-69.8)-7.9=20-7.9=12.1
32.4-2.3-27.7=
答案:
32.4-(2.3+27.7)=32.4-30=2.4
7.21+2.56-1.21=
答案:
(7.21-1.21)+2.56=6+2.56=8.56
8+4.6+1.4=
答案:
8+(4.6+1.4)=8+6=14
1.01+0.6+0.09=
答案:
(1.01+0.09)+0.6=1.1+0.6=1.7
0.03+0.92+0.57=
答案:
0.03+(0.92+0.57)=0.03+1.49=1.52
1.02+0.5-0.02=
答案:
(1.02-0.02)+0.5=1+0.5=1.5
9.41-0.67-7.33=
答案:
9.41-(0.67+7.33)=9.41-8=1.41
0.41+0.56+0.29=
答案:
(0.41+0.29)+0.56=0.7+0.56=1.26
6.71-0.45-5.55=
答案:
6.71-(0.45+5.55)=6.71-6=0.71
8.05-0.24-7.05=
答案:
(8.05-7.05)-0.24=1-0.24=0.76
2.6+9.6+3.4=
答案:
(2.6+3.4)+9.6=6+9.6=15.6
8.31+75.7-2.31=
答案:
(8.31-2.31)+75.7=6+75.7=81.7
6.21+71.5-1.21=
答案:
(6.21-1.21)+71.5=5+71.5=76.5
7.31+4.3-0.31=
答案:
(7.31-0.31)+4.3=7+4.3=11.3
0.55+0.43+0.15=
答案:
(0.55+0.15)+0.43=0.7+0.43=1.13
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