六年级计算复习题

1、一、口算。（10分）10 2.65 0÷3.8 9 ×0.08 24 ÷0.4 67.5 0.25 6 14.4 0.77 0.33 5 1.4 1.6 80 ×0.125=÷3×=二、用简便方法计算下面各题。1125 997998+12464 +3.2 5 +6.812(1 +2 )400 ÷125 ÷825 ×（37×8）( ) ×12 1×2 ×34×(2 )125 ×8.84.35 4.25 3.65 3.75 3.4×99 3

2、.417.15 8.47 1.5317 3 4÷2 ×0.125 ×0.25 ×3222.3 2.45 5.3 4.55 (+) ×724.25 3 (2 1 )187.7 ×11 187.7 43× 57.125 × 0.53415 ×(57 314 ÷34 )2.42 ÷ +4.58 × 4÷3212×6.6 2.5 ×6351178 613 1234.6+325 +635 +5.42.8+549 +7.2+359445(245 +512 )

3、438 +2.25+558 +734725 +457 +23553611 1647 +16511237 +359 337 +149 +1470.75+58 +14 +0.3755-21417 -131745 945 +9945 +99945 +999945 48.3-1516 -456956×4.25+414÷60.625 ×0.5+58 +12 ×62.5%3138 ×72513 ÷3138 1645 +(247 -1.8) 2.5(910+910×+910 +910 )2234 ×+25 ×75%-7

4、 ×0.750.25 ×63.5 14 ×13126715 ×2.5-212 ×4715 389 +3.125+119 +1781125-996(111+999) ÷56 ×(37 -38 ) 49.5 1035 ×-(50-12 ) 0.6× 711 41419×+5519 ÷147 +71145 ×(79 +4150.6)897×38 37.5%+104×0.375314×(538 5.375)3.5×114 +1.25×

5、2710 +3.8÷457199 ×3755+29968439+1001446+295888+999 72156×-56 ×722532 ×12570999+709×14. 0.2548×2.537×0.4×213299101×563999×2126.6+2×.5×63575.3 ×99+75.34.63.7+54× ×0.370.12534+18××8.25+12.5%8.37-3.25- (1.37+1.75)2

6、100÷ 201178 613 12315314 4.25 519.82 6.57 3.434.6+325+635+5.4438+2.25+558+7349.63÷ 2.5 ÷ 46÷0.25235 - 135÷1835×153 0.6 ×53（ 45 14 ）÷73 71010 - 719 - 1219 + 11925×13 ÷52 ×31013.098.12 4.8812 ×103 4500 ÷7518 ×12 ÷(35 ×109

7、)(215311 ) ×15×11一、口算下面各题。（ 23 分）10 2.65 0.9 ×0.08 528 349 6 14.4 24 ÷0.04 12.34 2.3 0 ÷3.8 0.77 0.33 7 ÷1.467.5 0.25 7.2÷8×451.4 1.6400 ÷125 ÷81.9 ×4×0.5 80 ×0.125=÷3×= 6÷6=2(+)= 10×2=3.2 ×7÷3.2×7= (

8、 ) ×12= 187.7×11 187.7=1 ÷62.5%=二、写出下列每题在简便运算时所运用的定律或性质(12 分)4 +3.25 +6.825×(8 ×0.4)×1.257(2)()()()(+ )×7293.5÷3÷16÷2.5()()()三、用简便方法计算。（65 分）1125 997998+1246+9989（8700 870 87）÷87125 ×8.81.34.25 3.7 3.7517.15（ 3.5 2.85 ）3.4 ×99 3.44.8×1.010.4×（2.5 ÷73）（1.6 1.61.6 1.6）×25（ ）÷12.3 2.45 5.7 4.55÷2 ×0.125×0.25 ×6464.2 ×870.642 &#