计算原题

六年级数学 计算题 一、直接写出得数 1—0.375= 48×12.5%= 23 -35 = 1.9-0.3×3= 8×99= 25 +16 = 15-15×13 = 5÷57 -57 ÷5= 1.8÷3×2= 40×35= 5/6-/1/2= 15×(1/3-1/5)= 1/3+1/4= 8/3÷5/6= 0.3 2 = 490÷7= 505+235= 1.8÷3×2= (1-40%)×52= 0.85÷8.5= 301×29≈ 5952÷62≈ 2.7 + 23 = 10 - 0.86 = 9.9×10% = 7/8÷7/10 = 2.8 - 4/7 + 1.2 = 4 - 180% = 2.5×3.5×0.4 = 1/6+5/6×1/5 = 4-74= 252+73-252= 1-37%= 6.9×31= 0.4×95+ 0.6×95= 1.25÷2×0= 3.6÷0.9= 276+198= 10―1.6= 9.5-9.5×0= 1÷50%= 1.25×0.7×8= 8/3÷5/6= 15/2×8 = 0.2+70= 0.2+8= 2.5%×40= 1-1%= 4×3÷3×4= 33×98+66= 296+399= 90-0.3= 456-456×0= 3÷30%= 1.25×11×80= 71×7÷ 71×7= 8×21÷8×21= 21× 31÷ 21× 31= 2 ×21÷2 ×21= 7.4+6 = 5—1.4—0.6 = 4.2÷1/5= 5×1/5×0 = 10—0.09= 二、解方程(或比例) 0.75x+3×0.8=7.5 2x0.6 =0.93 621831   x 10.1- 4x = 2.9 7.5:x = 24:12 3.2x+6.8x=4.5 3χ+4.5=9.5 0.3 : χ=4.2 : 28 61:83=4×:21 X8 . 0 =54 . 0 6X-2.5=9.5 121:4=1.35:X 25 :x = 25%:5 5x:

21=4:0.4 41 X+83X=35

X+50%X = 7.5 2X∶54=58∶2 54 ∶0.5=4X 三、脱式计算,能简便计算的要简便计算。(12 分) 44×(511 -14 ) 7.5×46.7+5.33×75 6×14 +13÷4-19×0.25 )1253143( 24    4.2+0.75+80%+41 5143541   2523-(1715-252) 125 85 - 65 256 - 72 + 2.4 1.25×32×0.25 1.8×1/4+2.2×25% [1-(1/2-1/4)] ×2/3 32×12.5×2.5 0.25 × 32 × 125 89×101 97 ×(79 -727 ) 158÷61+157×6 12.05-2.56-5.44 61×4.25+461×65 1.25×25×3.2 2005× 20042003

7.25-373+2.75-676 9× 157-154×9 3-91×121+65 [ 35 ―(34 ―25 )]÷4 12×[(11/6-2/3) ×3] 3.45×45%+4.5×0.655 (27×73+73)÷73 54-(54-12)×2 6.7-1.75+1.8 12×(61+41--31) 0.25×3.2×1.25 1--21--41--81--161 6÷31--31÷6 18.15—(3.5—1.75) 48×491 67.5×0.52+3.25×5.2 36×( 56 + 79 ) 42÷(65 ÷ 37 )

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