14,20,54,76,(126) 3^2+5 5^2-5 7^2+5 9^2-5
11^2+5=126
5,13,25,41,61 1+4=5 4+9=13 9+16=25 16+25=41 25+36=61
2,30,130,350,(738) 1^3+1 3^3+3 5^3+5 7^3+7
9^3+9=738
63,72,76,112,( ) A.256 B.257 C.258 D.259 正确答案:A. 答案解析:
72-63=3^2 除了最高位其他位的平方 76-72=2^2 112-76=6^2 ?-112=12^2
-1,3,11,37,79,() A.150 B151 C152 D153 正确答案:B 答案解析: 1*0^2-1=-1 2*1^2+1=3 3*2^2-1=11 4*3^2+1=37 5*4^2-1=79 6*5^2+1=151
15, 26, 38, ( ), 55
A.49 B.67 C.42 D.81 正确答案:B
答案解析:个位的平方加上十位等于第二个数。
1,13,36,69,104,() A224 B119 C343 D459 正确答案 B 答案解析: 2^3-7=1 3^3-14=13 4^3-28=36 5^3-56=69 6^3-112=104 7^3-224=119
7,14,28,56,112,224 等比
27/7, 53/6, 79/5, 99/4, 107/3, 97/2, () A.51 B. 63 C.79 D.91 解析: 4-1/7 9-1/6 16-1/5 25-1/4 36-1/3 49-1/2 64-1/1=63
2,15,7,40,77,( ) A96 B126 C138 D156 15-2=13=4^2-3 40-7=33=6^2-3 138-77=61=8^2-3
-1,0,31,80,63,( ),5 A.35 B.24 C.26 D.37 0^7-1=-1 1^6-1=0 2^5-1=31 3^4-1=80 4^3-1=63 5^2-1=24 6^1-1=5
1,0,-1,-2,()
A^3-1=B 1^3-1=0 0^3-1=-1 -1^3-1=-2 -2^3-1=-9
1,5,14,32,( )
A. 93/2 B. 59 C. 67 D. 71 做差得到:4,9,18,35 2^2+0=4 2^3+1=9 2^4+2=18 2^5+3=35 32+35=67
-1,7,5,21,(),43 A19 B23 C25 D29 答案解析: 1^2-2=-1 2^2+3=7 3^2-4=5 4^2+5=21 5^2-6=19 6^2+7=43
0,6,78,(),15620 A.240 B.252 C.1020 D.7771 1^2-1 2^3-2 3^4-3
4^5-4=1020 5^6-5
0、6、23、48、121、170 2^2-4=0 3^2-3=6 5^2-2=23 7^2-1=48 11^2-0=121 13^2+1=170
3,3,6,3,33,() A.-24, B.27 C.36 D.54
A^2=B+C 3^2=3+6 3^2=6+3 6^2=3+33 3^2=33-24
3,30,29,12,() A.92 B.7 C.8 D.10 1^4+2 3^3+3 5^2+4 7^1+5 9^0+6
-1, 3, 3, 5, 37, ( ) A.87 B.327 C.729 D.735 (-2)^1+1=-1 (-1)^2+2=3 0^3+3=3 1^4+4=5 2^5+5=37 3^6+6=735
39、74、71、18、( ) 2^5+7=39 3^4-7=74 4^3+7=71 5^2-7=18 6^1+7=13
8. -2 1 24 253 () A..3122 B.2956 C.89 D.43 1^1-3 2^2-3 3^3-3 4^4-3 5^5-3
9. 15 26 15 4 () A.3 B.2 C.5 D.0 2^4-1 3^3-1 4^2-1 5^1-1
6^0-1=0
15. 11 33 73 ( ) 231 A.113 B137 C.153 D.177 做差得到:22,40,64,94 再做差得到:18,24,30 2^3+3=11 3^3+6=33 4^3+9=73 5^3+12=137 6^3+15=231
29. -5 2 3 4 11() A72 B30 C9 D2 -5-3=-8=-2^3 2-3=-1=-1^3 3-3=0=0^3 4-3=1=1^3 11-3=8=2^3
8. -2 1 24 253 () A..3122 B.2956 C.89 D.43 1^1-3 2^2-3 3^3-3 4^4-3 5^5-3
9. 15 26 15 4 () A.3 B.2 C.5 D.0 2^4-1 3^3-1 4^2-1 5^1-1 6^0-1=0
15. 11 33 73 ( ) 231 A.113 B137 C.153 D.177 做差得到:22,40,64,94 再做差得到:18,24,30 2^3+3=11 3^3+6=33 4^3+9=73 5^3+12=137