小学五年级数学计算能力竞赛题[1]

五年级数学计算能力试题（五）

姓名___________ 得分________

一、直接写出结果。

0.76+2.4= 3-0.83= 1.6÷0.08= 0.42÷4.2= 2.4×3= 9.3÷0.93= 1.3-0.03= 5.7+3.2= 8.4÷8.4= 0.02×0.5= 0.75÷0.25= 0.56÷28= 3.6+2.44= 12.8÷4= 10÷20= 3.08-0.3= 2.4÷0.8= 4.95+0.9= 0. 56÷0.7= 7.2×0.1= 1÷2.5= 0.22×102= 14 - 4.7= 11×11= 1217×17= 1811×14= 15÷0.72= 0.78×2.5= 0.54÷18= 3.6÷0.3= 6.3÷7= 5.6÷100= 0.125×8= 4.8÷0.3= 0.96+0.2= 0.36÷0.4= 0.64÷0.8= 0.72÷3.6= 0.8×1.1= 7.2+12.8= 46.7－3.8= 5.2-1.13= 12.5÷5= 1.64÷41= 24÷15= 8.65×10= 0.35×0.6= 4.95×1000= 6.9×0.1= 0.4×0.5= 10.8÷9= 9.6÷0.8= 0.108÷2= 9.65÷0.1= 0.325×100= 2.5×8= 0.125×4= 3.28×0.1= 3.9÷0.13= 0.01×0.1= 0.25×0.4= 1.6÷0.8= 1.25×0.8= 3.2÷0.04= 0÷1.7= 9÷0.25÷4= 0.25×3.97×4= （1.2＋8.8）×0.4= 2.5×0.4= 0.32

= 4.2×2.1÷4.2×2.1= ×12= 13×13= 14×14= 16×16= ×18= 19×19= 11×12= 11×13= ×11= 11×16= 11×17= 18×11=

7.2 25×3= 25×5= 25×6= 25×8= 25×16= 25×25= 35×35= 45×45= 55×55= 65×65= 55×75= 85×85= 125×2= 125×4= 125×6= 125×7= 125×8= 125×16= 2.5÷0.5= 4.5÷0.5= 5.5÷0.5= 2.4÷0.5= 4.8÷0.5= 5÷0.25= 2.5÷0.25= 0.5÷0.125= 5.5÷0.125= 1.6×0.5= 2.6×0.5= 3.6×0.5= 7.2×0.5= 9.4×0.5= 3.6×0.1= 14.3÷1.1= 132÷1.1= 16.5÷1.1= 19.8÷11= 125×80= 二、怎样简便就简便算。

251.4-2.74-3.26 4.3×3.8＋5.7×3.8 0.47×98

6.9＋3.1×0.2 0.27×99＋0.27 3.3×3.8＋5.7×3.8+3.8

4.2-2.1÷0.7+5.08 2.07+2.3+6.93+7.7 2.5×32×12.5

4.5×102 （5.84-3.9）÷0.4 3.68÷0.25÷4

999+99.9+9.99+0.999 4978.4978÷49.78×497.8

2000×1999-1999×1998+1998×1997-1997×1996

1995×199419941994-1994×199519951995 2÷2.5+2.5÷2

78787878×88888888÷1010101÷22222222

2222×9999 0.01+0.03+0.05+0.07+0.002+0.004+0.006+……1.98+2

199.8×1990-198.8×1998 199.8×1980-197.8×1998

0.1+0.3+0.5+0.7+0.02+0.04+0.06+……1+2 1-0.98+0.96-……+0.04-0.02