(1)-3²-(-2)² (2)-3²*4-3*(-4)² (3)(-2)
(1-2²)+3²-4²+5²-6²+7²-8²+
(1)-3²-(-2)² (2)-3²*4-3*(-4)² (3)(-2)
(1²+3²+…+99²)-(2²+4²+…+100²)=?
4×(-1/2²)-3/2×(-2/5)
-3²×(-3)² (-1/2)×(-2/3)×(-3/4)×(-4/5)
(1-1/2²)(1-1/3²)(1-1/4²)……(1-1/10²)
初一数学计算题(1/6)²+(2/60)²+(3/600)²+(4/6000)²
简便运算(1)101² (2)1999² (3)102² (4)2011²-40
(4a²-3b²)-[2(a²-1)+2b²-3] 化简下列式子
3²-2²)²+(4²-3²)²+(5²-…………
①(3x²-2)-(4x²-2x-3)+(2x²-1)
(1)(x²+y²)²-x²y² (2)(3a+2b)²-(