1)1/8×1001-0.125 (2)3.952-3.95×3.94 (3)16.8×7/32+7.6×7/16 (4
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1)1/8×1001-0.125 (2)3.952-3.95×3.94 (3)16.8×7/32+7.6×7/16 (4)5×998+10
1)1/8×1001-0.125
(2)3.952-3.95×3.94
(3)16.8×7/32+7.6×7/16
(4)5×998+10
(2)3.95^2-3.95×3.94
1)1/8×1001-0.125
(2)3.952-3.95×3.94
(3)16.8×7/32+7.6×7/16
(4)5×998+10
(2)3.95^2-3.95×3.94
cfyx110
(1)1/8×1001-0.125
=1/8×1001-1/8
=1/8×(1001-1)
=1/8×1000
=125
(2)3.95²-3.95×3.94
=3.95×(3.95-3.94)
=3.95×0.01
=0.0395
(3)16.8×7/32+7.6×7/16
=16.8×(7/16)×(1/2)+7.6×(7/16)
=8.4×(7/16)+7.6×(7/16)
=(8.4+7.6)×(7/16)
=16×(7/16)
=7
(4)5×998+10
=5×998+5×2
=5×(998+2)
=5×1000
=5000
(1)1/8×1001-0.125
=1/8×1001-1/8
=1/8×(1001-1)
=1/8×1000
=125
(2)3.95²-3.95×3.94
=3.95×(3.95-3.94)
=3.95×0.01
=0.0395
(3)16.8×7/32+7.6×7/16
=16.8×(7/16)×(1/2)+7.6×(7/16)
=8.4×(7/16)+7.6×(7/16)
=(8.4+7.6)×(7/16)
=16×(7/16)
=7
(4)5×998+10
=5×998+5×2
=5×(998+2)
=5×1000
=5000
初一数学题:利用提公因式法进行简便运算: (1)5×998+10 (2)16.8×7/32+7.6×7/16
1/(2×1001)+1/(3×1001)-1/(4×1001)+1/(6×1001)-1/(8×1001)
(-1001)^2009*(0.125)^2008*(-2/7)^2009*(-4/13)^2009*(-1/11)^2
计算:(-1001)^7x(-0.125)^6x(-2/7)^x(-4/13)^7x(-1/11)^7
1.按规律填数.(1)3,4,5,8,7,16,9,32,( ),( ).(2)1,1/3,1/5,1/7,( ),(
(-3又1/8)*(-0.125)-0.125*(-4又7/8)
(-0.125)*(-3又1\8)-0.125*(-4又7\8)
1/2 3/4 7/8 27/16 ( )( )
(-1001)7次方×(﹣0.125)6次方×(﹣7分之2)7次方×(﹣13分之4)7次方×(﹣11分之1)7次方
1+2-3+4-5+6-7+8-9+10-11.1000-1001+1002=?(急!)
3-8/9×6/5÷32/3 (1-1/4×8/9)×9/7 (5/6+1/3)÷(3/4-2/3) 3/4÷(1/2-
1)2,3,7,16,32( )