人教版六年级上册简便计算及解方程专项练习.docx

人教版六年级上册简便计算及解方程专项练习2.85.6+3.42+280%1.7+2.32.647+3.36+7.4+4+2.6+524(+) (+)27 1.252+30.8 262 + 233 6.28+6.282 101 8.752(1+3) 213 4.41.61 （）9+32 9.9 0.54.5 + 6+ + 2 1125997 998+1246 4+3.25+6.8 12(1+2) 4001258 1734 2 0.1250.2532 22.32.455.34.55 4357.1250.5 ()187.711187.7 + 48.3- 4.25+6 0.6250.5+62.5% +(-1.8) 0.125+8.25+12.5%22+2575%-70.75 89737.5%+1040.375 +2.4=6 3.5: =5:4.2 1.8=2.4= 631.8=7.2 175=2.4+3 = = 12.62=8X X= 2X + = 70%X + 20%X = 3.6X=20 25% + 10X = X - 15%X = 68XX121 5X3 X126X5 =13.4 3X=X= XX= 4X6=2X= X = X = 4x3 9 = 29 x + x = 4 X21=4 6X5 =13.4 X-X= 46385X= X= X=X=12 X= X= X-0.25= =30% =4+0.7X=102 X+X=42 X+X=105X-X=400 X-0.125X=8 = X+X=18 X( + )= = x+=4 XX12 5 X2.4580.365- x = (x- 4.5) = 7 x- 25%x = 10x- 0.8x = 16+6 20 x 8.5= 1.5 x- x -4= 21 X25%X=90 XX= 3 / 3