四年级下册计算能手86页.docx

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1、人教版四年级下册计算能手86页一、口算题()9=80()x2=8420+700=261-87=49x12=58x20=156-95=8+199=24003=40x2=544-20=37854=15003=4355=()5=200030x54=110x4=200-()=1643x7二8x39=15x7=39.4+68.7=92.14-52.1=75.6-59.1=3+55.2=79.16-55.1=24.2+34.6=25.2+4.7=4+31.2=21.2+42.8=83.7-47.4二34.5+32.2二68.19-43.1=36.4+71.3=26.6+49.18=57.12-41=166

2、+78.16=61.8+49.16=79.11-76.1=82.9-36.8=5+88.16=95.2-57=54.5+49.12=81.3-29.7=44.9-22.4=二、脱式计算22x9-36108+9x631x9-18x112387x6822-7901022579x444x5-640836x2-27378x8-1324772-418117x12+12x1191x11-46698x7-15426x16-13x335x5+40x1039x4-23168x10-10737x12-14x5(644-138)11620(264-244)104(859-807)(756-108)12(1539-1

3、296)3(28+71)x7366x(58-16)(693+42)743x(17+12)(135+396)9(204+9)3(1735)x50三、简便远算18x19880x4x25164x3+164x4798x73203x5249x25x4593-29-49345x20x54x66x25379+76+12453+716+84671+972+229877-447-253101x90-9047x151-47x61201x3899x61900254800254197+307-17744x5x20957-275-357853+444+47400012584x25x43000125872116+4849.74+114+4868.14-3.65-3.35685-555+2.159.87+19+2.12.1+3.26+1.74124-115+6.766.56+1.63-4.56373+6562.446.73-2.1-3.9