4.10.10.12算24点怎么算式(
4.10.10.12算24点怎么算式? -
(12一10)×10十4 =2×10+4 =20十4 =24
(10-2x4)x12
(12一10)×10十4 =2×10+4 =20十4 =24
(10-2x4)x12
12×√4+10-10=24
第50个数组中三个数的和是:4+3×49+10+1×49+12+4×49=(4+10+12)(3+1+4)×49=26+8X49=418