人教版初二数学上册单项式乘单项式练习题精选31.docx
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人教版初二数学上册单项式乘单项式练习题精选31.docx
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人教版初二数学上册单项式乘单项式练习题精选31
(2×108)×(-4×107)(-3a3b)(-6a2)(-4x)2(2x4y2)
4x•3x-4y•(-4xy3)(-4x)2•8x3
(-3a)3•(-3a)3-7a•7a32y•6y
(2a)2-(5b)3(-6b)2(xy2)4
(-3x2)3(ab)6(-2×104)3(5ab4)3
(105)6(y4)8(bm)2-(y3)6
(109)8(y3)6-(am)3(a7)4•a3
x6•x2y8•y7t•t6
(-8)3×(-8)5×(-8)6xm•x6m+1x6m•x7m-1
111
(-—)×(-—)3×(-—)7y9•y4s6•s3
333
(-2)×(-2)6×(-2)6b•b5a•a7
111
(-—)×(-—)8×(-—)3y5n•y5n+1ym•y5m+1
333
(5×109)×(-2×109)(-ab4)(-5a)(-3x)2(2x3y5)
-2x•6x6y•(-2x3y4)(4x)2•8x3
(-2a)2•(4a)3-2a3•9a3-3y•7y
(7a)3-(5b)2(-5b)3(xy3)3
(-3x4)3(xy)5(-2×104)2(4ab3)3
(106)9(x7)6(ym)5-(a3)2
(109)9(b8)2-(bm)8(a4)7•a7
x5•x9x7•x5a4•a7
(-10)×(-10)2×(-10)8xm•x2m+1x4m•x3m+1
111
(-—)×(-—)6×(-—)8a4•ab8•b3
444
(-10)×(-10)5×(-10)6t•t4x3•x7
111
(-—)×(-—)4×(-—)5x8n•x2n-1ym•y9m-1
777
(8×103)×(-9×103)(-2a4b4)(-3a)(3x)2(4x2y5)
9x•2x7y•(-2xy)(4x)2•4x2
(-2a)2•(-2a)2-2a•9a2-5y4•3y4
(4a)2-(6b)3(-3b)3(xy3)4
(-6x3)3(ab)8(-4×104)3(3ab3)3
(102)3(b4)5(yn)7-(b4)4
(106)8(x4)9-(yn)9(a9)8•a7
x•x6z•z3x•x3
(-7)3×(-7)5×(-7)3x7m•x2m-1x2m•x5m-1
111
(-—)7×(-—)4×(-—)8s5•s9z2•z
777
(-4)×(-4)8×(-4)8z•z3y•y3
111
(-—)×(-—)9×(-—)9x3m•x3m-1x7m•x5m-1
333
(3×104)×(-9×104)(-9ab)(-3a)(-4x)2(3x2y2)
3x4•7x43y2•(-2xy2)(-4x)3•6x4
(-2a)3•(-3a)37a•4a35y•5y
(2a)3-(5b)2(-3b)2(xy2)4
(-3x4)3(xy)2(-3×104)3(4ab3)2
(105)5(a3)6(xn)9-(a7)2
(104)5(y9)3-(yn)3(a8)5•a2
x•x2b•b3z•z7
(-9)6×(-9)6×(-9)5x5m•x7m+1x3n•x3n-1
111
(-—)3×(-—)5×(-—)2y4•y7t2•t8
666
(-5)6×(-5)5×(-5)2z5•z7b6•b3
111
(-—)×(-—)2×(-—)6xn•x2n+1x7m•x9m-1
999
(8×105)×(-3×108)(-ab4)(-2a)(2x)3(-4x2y5)
-8x4•7x-6y•(-2xy)(-3x)2•7x4
(-4a)3•(3a)38a4•8a2-6y•3y2
(3a)2-(5b)2(-3b)2(xy5)2
(-2x3)3(xy)7(-2×104)2(4ab4)3
(109)2(x6)4(ym)9-(x7)5
(107)7(a4)3-(yn)9(a8)3•a5
x2•x5s•s5t•t9
(-10)7×(-10)4×(-10)2x2m•x6m-1x6m•x6m+1
111
(-—)×(-—)3×(-—)4y6•y6x6•x2
444
(-8)×(-8)6×(-8)2x4•x8s3•s2
111
(-—)9×(-—)4×(-—)4xn•x8n+1x8n•x5n-1
777
(2×108)×(-6×107)(-8ab4)(-8a2)(3x)3(-3x4y4)
-6x•3x45y•(-6x2y2)(4x)3•3x2
(-2a)3•(-3a)33a•8a26y4•9y
(2a)3-(4b)2(-4b)2(xy3)4
(-5x3)3(xy)3(-2×103)2(5ab2)2
(109)9(b3)6(an)2-(x4)7
(106)2(b2)2-(am)3(a7)6•a5
x5•x7s2•s7y2•y8
(-4)6×(-4)2×(-4)5x4m•x2m+1x7n•x4n-1
111
(-—)7×(-—)5×(-—)2y3•y5t4•t5
777
(-6)8×(-6)6×(-6)2a7•a2z•z4
111
(-—)×(-—)5×(-—)5y2m•y2m+1x2m•x3m-1
999
(7×104)×(-9×108)(-a2b2)(-6a)(4x)2(-2x2y4)
-9x3•6x-5y3•(-6xy2)(4x)3•8x4
(-2a)2•(4a)2-8a•9a-5y2•4y
(2a)3-(6b)2(-4b)3(xy2)4
(-6x3)3(xy)9(-2×103)3(3ab4)2
(108)5(x9)3(yn)7-(y7)8
(104)7(a9)2-(yn)2(a3)7•a5
x•x4c4•c2s5•s8
(-4)×(-4)2×(-4)2xm•x3m+1xn•x2n-1
111
(-—)9×(-—)8×(-—)7b4•b8b8•b
888
(-3)×(-3)9×(-3)8t•t5y9•y7
111
(-—)9×(-—)8×(-—)5xm•x7m-1x5m•x3m+1
333
(3×103)×(-2×106)(-a4b2)(-5a)(4x)3(-2x4y3)
-4x2•4x-4y•(-9x4y)(-2x)3•2x3
(-2a)2•(3a)3-2a•2a-4y•4y
(4a)2-(5b)2(-6b)3(xy2)3
(-6x3)2(ab)6(-4×103)2(3ab3)2
(102)3(y2)6(xm)5-(b8)6
(105)5(x9)7-(ym)3(a8)7•a9
x5•x2a•a7z5•z2
(-7)3×(-7)5×(-7)8x8n•x2n+1x6m•x9m+1
111
(-—)7×(-—)3×(-—)8z4•zb4•b8
444
(-3)×(-3)6×(-3)8s•s8y8•y7
111
(-—)×(-—)7×(-—)6x8m•x7m-1yn•y2n-1
333
(6×102)×(-2×105)(-7a4b)(-2a3)(2x)3(-3x2y4)
2x•5x-8y3•(-2xy)(-3x)2•5x4
(3a)2•(2a)38a4•9a-4y3•4y
(10a)2-(3b)3(-2b)3(xy5)2
(-5x2)2(ab)7(-3×103)3(4ab2)3
(105)9(a6)8(xm)3-(x2)7
(105)6(a4)8-(yn)7(a5)7•a3
x4•x7b6•b7s4•s5
(-3)4×(-3)5×(-3)5xn•x3n+1x4m•x7m+1
111
(-—)6×(-—)5×(-—)8b8•by6•y
999
(-8)×(-8)3×(-8)5b•b9c4•c6
111
(-—)4×(-—)6×(-—)3yn•y6n-1xn•x6n+1
222
(5×106)×(-2×106)(-2a3b2)(-8a2)(-4x)3(-3x3y3)
3x3•2x25y•(-7xy3)(4x)3•3x4
(-2a)3•(-4a)36a3•3a5y3•2y4
(4a)2-(6b)2(-2b)2(xy5)4
(-6x2)2(xy)7(-4×104)2(5ab3)2
(105)4(y2)4(am)2-(y3)8
(109)4(b2)7-(am)2(a3)7•a3
x7•x2y7•y2x5•x4
(-7)2×(-7)6×(-7)5x2n•x2n-1x7n•x7n+1
111
(-—)2×(-—)2×(-—)9z7•zy2•y2
555
(-5)×(-5)2×(-5)2c4•c8b•b2
111
(-—)×(-—)7×(-—)5x9m•x4m+1ym•y3m-1
888
(3×105)×(-6×109)(-3ab4)(-4a)(2x)2(-4x4y4)
7x4•9x4-4y•(-6xy)(-3x)3•6x3
(3a)2•(4a)3-7a4•4a47y4•8y
(3a)2-(2b)3(-2b)2(xy4)3
(-5x3)3(ab)9(-3×104)2(3ab3)3
(107)8(y7)8(xn)3-(x6)5
(103)6(y8)2-(am)5(a9)5•a2
x•x4s•s8c•c7
(-3)×(-3)8×(-3)2x3n•x6n+1x9n•x3n+1
111
(-—)6×(-—)2×(-—)2y9•y5y9•y
888
(-1)×(-1)6×(-1)8a•a5c7•c6
111
(-—)×(-—)9×(-—)2ym•y2m+1ym•y4m-1
999
(8×106)×(-4×103)(-ab)(-2a3)(4x)3(4x2y3)
5x•7x3y4•(-9x2y)(-4x)2•3x4
(-4a)3•(-3a)2-8a•7a7y2•2y2
(8a)3-(6b)3(-4b)3(xy3)2
(-3x3)2(ab)3(-3×102)2(3ab2)3
(102)4(a8)8(ym)4-(b2)6
(105)7(a4)8-(xn)7(
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