北师大版数学七年级下册计算题大全(70)

1(x－3y)(x－y) 3(－3a－5b)(3a+2b)

(3x－7y)(x+2y)

1111(－p+q)(－p－q) 523432413212(－ax－ax)÷(－ax) 51051(－2πrh+3πrh)÷(πrh)

22

2

122

(2ab)?(－ab)

102

3322522(－xyz)?(－yz) 54(10x)2?y3÷(2x3y3)

12(－ab)÷(－ab)

102

4

－5x2y2(5x2yz－3y2z)

21211(－a)(a+a+) 7101061(x－2y)(x－y)

8(－4a－3b)(5a+4b)

(9x－7y)(x+2y)

1111(－p+q)(－p－q) 544644214222(－ax－ax)÷(－ax)

51051(－5πrh+6πrh)÷(πrh)

63

3

122

(10ab)?(－ab)

42

3323532(－xyz)?(－yz) 54(2x)2?y2÷(8x2y2)

12(－ab)÷(－ab)

32

4

－3x3y3(8x2yz+4y2z)

21211(－a)(a+a+) 581061(x－5y)(x－y) 5

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