1、三年级数学简便运算 (1)284+(591+716) (2)153+178+122+547 (3)(141+229)+(371+659+1048) (4)926-348-152 (5)1584-627-373+416 (6)1276-(276+339) (7)4628-(1628-794) (8)526+498 (9)803+488 (10)938-299 (11)836-402 (12)635+327+125+(363+240) (13)9
2、999+999+99+9+6 (14)32+34+36+38+40+42+44+46+48 (15)(1347-258)-(347+742) (16)3560-(474-440)-526 (17)12345+23451+34512+45123+51234 (18)5+10+15+20+…+95 (19)5+6+7+8+…+103+104 (20)(2+4+6+…+100)-(1+3+5+…+99) 四年级数学简便运 (1)(78+61)+39 (2)700-82-18 (3)348+163+242+410+537 (4)125×47-47×25 (
3、5)201×316 (6)374-205+226-95 (7)3000-999 (8)997×7+21 (9)87×470+870×53 (10)(55+55+55+55×5)×125 (11)125×(8+40)×25 (12)99+49×99 (13)264×97+4×264 (14)454+999×999+545 (15)9999×36+6666×3×32 (16)124×38+65×124+76×110-76×7 (17)62×4+44×5+5×18 (18)3400-62×34-38×20-38×14 (19)1992×1991199
4、1-1991×19901990 (20(2+4+6+……+100)-(1+3+5+……+99) 小数简便运算练习 4.8+8.63+5.2+0.37 5.93+0.19+2.81 1.76+0.195+3.24 2.35+1.713+0.287+7.65 1.57+0.245+7.43 6.02+3.6+1.98 0.134+2.66+0.866 1.27+3.9+0.73+16.1 7.5+4.9-6.5 3.07-0.38-1.62 1.29+3.7+2.71+6.3 8-
5、2.45-1.55 3.25+1.79-0.59+1.75 23.4-0.8-13.4-7.2 0.32×403 3.2+0.36+4.8+1.64 1.23+3.4-0.23+6.6 0.25×36 12.7-(3.7+0.84) 36.54-1.76-4.54 0.25×0.73×4 7.6×0.8+0.2×7.6 0.85×199 0.25×8.5×4 1.28×8.6+0.72×8.6 12.5×0.96×0.8 10.4-9.6×0.35 0.
6、8×(4.3×1.25) 3.12+3.12×99 28.6×101-28.6 (4.23+6.17)×0.8 0.86×15.7-0.86×14.7 2.4×102 14-7.32-2.68 2.64+8.67+7.36+11.33 2.31×1.2×0.5 (2.5-0.25)×0.4 9.16×1.5-0.5×9.16 3.6-3.6×0.5 4.5÷1.8 4.2÷3.5 930÷0.6÷5 63.4÷2.5÷0.4
7、 4.9÷1.4 3.9÷(1.3×5) (7.7+1.54)÷0.7 2.5×2.4 2.7÷45 0.35×1.25×2×0.8 32.4×0.9+0.1×32.4 15÷0.25 70÷28 15÷(0.15×0.4) 4.25÷2.5×9.9+0.17 人教版六年级数学简算.计算题 4/9×3= 5÷1/3 = 1/2÷1/3 = 21/25÷42= 4/5×3/4 = 8.7×0.2
8、 4×0.25= 1/7×14= 2/3÷5/6= 1.25×8= 3/5÷5/8= 6/7×3/2= 6×8.8= 4/11÷4= 4/9×3/8= 5/3÷5= 0÷8/3= 4/7-2/3= 2/7×2= 41/12×4= 4÷3/16= 12÷9/4= 75/8 ÷5= 12×16/9= 2/3×3= 8÷9/4 = 5/3÷3/5 = 4/5×5/8= 7/9×9/7= 2.64+3.6= 2.4×50= 3500÷70= 2050-298= 2+7÷9= 0.3÷3%= 286+198= 314-202= 526+301= 223-99
9、= 1/2×3/5= 1. 89÷100= 0.82+0.08= 73×1= 0.63×10= 4÷10= 17÷1000= 0.56+0.4= 1.25×100= 5.6+99= 43×63/21= 100÷25= 1-0.93= 90-0.9= 18.3×1/3= 794-198= 68×25= 43.3-63/21 = 72×125= 3001-1998= 23/5×5/6 = 20/3×12= 1/2-1/6= 30.25×4/5= 5/6-1/2= 1/2×1/5= 4.25×4/25×4 57.26-(5.26-1.5)
10、 106.25+3.85-2.125+3.875 11.9-2456×21 5/11-4×2.75 13.375+5.75+2.25+6.625 (15.1-9036)÷18 163.8×5.25+14.5 172.1×4.3+5.7×2.1 19.102×45-328 2.8×3.1+16/8 23÷(50-12.5) ÷2.5 24×2/5×1/3 25.6÷110×47+639 3.5×2.7-52.2/18 28-1/7×1/5
11、 3.375×0.97+0.97×6.625 6.54+2.4+3.46+0.6 95.6×1.8+95.6×8.2 35.6-420/12×4 344/3.6-5.4×0.25 16/2+30/2+90/6 5000-105×34 0.15/0.25+0.75×1.2 41×(1/2+1/3+1/4)×0.24 42×(25+4)×4 3×63/21-84 0.81/0.25+5.96×5 403÷13×27 46.1.5×4.
12、2-0.75÷0.25 3.27×4 +3.27×5.7 (1.2+ 1.8)×4.51025-768÷32 0.25×80-0.45÷0.9 50.1025-768÷32 81.2-11÷7-×3= 6696÷62-6.5×10.6 = 2/7×3/9 ÷2/7 = 6756-193-207= 97×360+3×360= 4/9×3= 5÷1/3 = 1/2÷1/3 = 2/7×3/9 ÷2/7 = 21/25÷42= 4/5×3/4 = 8.7×0.2= 4×0.25= 1/7×14=
13、 2/3÷5/6= 1.25×8= 3/5÷5/8= 6/7×3/2= 6×8.8= 4/11÷4= 4/9×3/8= 5/3÷5= 0÷8/3= 4/7 -2/3= 2/7×2 = 41/12×4= 4÷3/16= 12÷9/4 = 75/8 ÷5= 12×16/9 = 2/3×3= 8÷9/4 = 5/3÷3/5 = 4/5×5/8 = 7/9×9/7 = 2.64+3.6= 2.4×50= 3500÷70= 2050-298= 2+7÷9= 0.3÷3%= 81.2-11÷7-×3= 6696÷62-6.5×10.6 = 1. 89÷100= 0.82+0.08= 73×1= 0
14、63×10= 4÷10= 17÷1000= 0.56+0.4= 1.25×100= 5.6+99= 100÷25= 1-0.93= 90-0.9= 794-198= 68×25= 6756-193-207= 72×125= 97×360+3×360= 一、简算。 ★1.1035-998 ★2.5076+99 ★3.3008+449 ★4.428×25×4 ★★5.328-189-28 ★★6.43.2-(3.2-1.28) ★★17.25×2×1.25×4×5×8 ★★18.84×0.25
15、+16÷4 二、改错,下面各题错在哪里,请改正。 ★★2.5731-(731-525)=5731-731-525 =5000-525=4475 答案仅供参考: 二、略 (1)888+999 (2)58-92+42-8 (3)(88*125+125*12)*8 (4)816-2304/72+8*3 (5)3306*51/7 (6)659-348/2 (7)13-(2.65+3/7) (8)12*28/7 (9)(7/10)/3+(3/10)/(1/3) (10)0.007+0.993X4
16、X5X1.8 (11)(522+643*521)/(522*643-121) (12)341*99+314*1 (13)0.56+0.4 1. 33333*6*11111+22222 =(199998+2)*11111 =200000*11111 =2222200000 2. 1/2 +1/6 + 1/12 + 1/20 + 1/30 + 1/42 + 1/56 =1-1/2+1/2-1/3+1/3-1/4+1/4-1/5+1/5-1/6+1/6-1/7+1/7-1/8 =7/8 3. 999 * 888 +888 * 777 + 777 * 666 + 666 * 555 =111*111*(9*8+8*7+7*6+6*5) =111*111*(16*8+12*6) =111*111*200 =12321*200 =2464200
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