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简介:
七下数学平方根立主根速记表
开平方数字表
求平方(正数) 算术平方根 求平方(正负) 求方根(正负)
12=1 = 1 2=1 =1
22=4 = 2 2=4 =2
32=9 = 3 2=9 =3
42=16 = 4 2=16 =4
52=25 = 5 2=25 =5
62=36 = 6 2=36 =6
72=49 = 7 2=49 =7
82= 64 = 8 2=64 =8
92= 81 = 9 2=81 =9
102=100 = 10 2=100 =10
112=121 = 11 2=121 =11
122= 144 = 12 2=144 =12
132=169 = 13 2=169 =13
142=196 = 14 2=196 =14
152=225 = 15 2=225 =15