初中口算题500及答案
@正辰4999：初一口算题50题带答案 - 作业帮
时飘13821292722…… [答案] 2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 10/1*9...
@正辰4999：初中口算题40道急需 - 作业帮
时飘13821292722…… [答案] 1.(1+1/2)(1+1/3)(1+1/4).(1+1/100) 2.(1-1/2)(1-1/3)(1-1/4).(1-1/100) 3.8+2-8+2 4.25*4/25*4 5.7.26-(5.26-1.5) 6.286+198 7.314-202 8.526+301 9.223-99 10.6.25+3.85-2.125+3.875 11.9-2456*21 12.0.5/11.5-4*2...
@正辰4999：初一有理数口算题100道求求大家了,给小弟100道口算题吧,做起来越方便越好的那种口算, - 作业帮
时飘13821292722…… [答案] 2 * 4 = ( ) 8 - 1 = ( ) 10 + 54 = ( ) 64 - 5 = ( ) 2 + 64 = ( ) 1 * 8 = ( ) 22 - 7 = ( ) 39 - 23 = ( ) 82 - 78 = ( ) 3 * 5 = ( ) 47 + 25 = ( ) 57 + 43 = ( ) 8 * 1 = ( ) 5 + 28 = ( ) 5 + 43 = ( ) 62 - 60 = ( ) 2 * 8 = ( ) 2 + 35 = ( ) 68 - 15 = ( ) 2 * 8 = ( ) 1 * 7 = ( ) 17 + 7 = ( ) 3 * 9 ...
@正辰4999：初中负数乘法口算题300道负数口算题,不要太简单, - 作业帮
时飘13821292722…… [答案] 39+[-23]+0+[-16]= [-18]+29+[-52]+60= [-3]+[-2]+[-1]+0+1+2= [-301]+125+301+[-75]= [-1]+[-1/2]+[+3/4]+[-1/4]= [-7/2]+[+5/6]+[-0.5]+4/5+19/6= [-26.54]+[-6.14]+18.54+6.14= 1.125+[-17/5]+[-1/8]+[-0.6]= 0.75+[-11/4]+0.125+12又5/7+[-3/8]= [-4/9]+[-3/5]+[+11/...
@正辰4999：初中口算练习题 - 作业帮
时飘13821292722…… [答案] 1.(1+1/2)(1+1/3)(1+1/4).(1+1/100) 2.(1-1/2)(1-1/3)(1-1/4).(1-1/100) 3.8+2-8+2 4.25*4/25*4 5.7.26-(5.26-1.5) 6.286+198 7.314-202 8.526+301 9.223-99 10.6.25+3.85-2.125+3.875 11.9-2456*21 12.0.5/11.5-4*2...
@正辰4999：初一有理数加减法口算题和答案(不用写过程)要34道,给50 - 作业帮
时飘13821292722…… [答案] (1)3-8+3=8 (2)-4+7=3 (3)-6-9=-15 (4)8-12=-5 (5)-15+7=-8 (6)0-2=-2 (7)-5-9+3=-11 (8)10-17+8=1 (9)-3-4+19-11=1 (10)-8+12-16-23=-37 (11)-4.2+5.7+10=11.5(12)6.1-4.9+1.8=4.6 (13)-216-157+348+512-678 (14)81.26-293.8+8.74+111 (15)12-(-18)+(-7)...
@正辰4999：20以内退位减法口算题!不要重复的!500道1 - 作业帮
时飘13821292722…… [答案] 20以内退位减法总共也没有500道呀,怎么可能不重复呢?11-9 12-9 13-9 14-9 15-9 16-9 17-9 18-9 11-8 12-8 13-8 14-8 15-8 16-8 17-811-7 12-7 13-7 14-7 15-7 16-711-6 12-6 13-6 14-6 15-6 11-5 12-5 13-5 14-511-4...
@正辰4999：急求150道分数乘除口算题 -
时飘13821292722…… 3.5*200= 1.5-0.06= 0.75÷15= 0.4*0.8= 4*0.25= 0.36+1.54= 1.01*99= 420÷35= 25*12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 5.2÷1.3= ...
@正辰4999：初中数学智慧口算题 - 作业帮
时飘13821292722…… [答案] 7(2x-1)-3(4x-1)=4(3x+2)-1; (5y+1)+ (1-y)= (9y+1)+ (1-3y); 20%+(1-20%)(320-x)=320*40% 2(x-2)+2=x+1 2(x-2)-3(4x-1)=9(1-x) x/3 -5 = (5-x)/2 2(x+1) /3=5(x+1) /6 -1 (1/5)x +1 =(2x+1)/4 (5-2)/2 - (4+x)/3 =...
@正辰4999：500道分数口算题如(24乘5/4) - 作业帮
时飘13821292722…… [答案] 12÷3/5=12*5/39÷6/7=9*( 7/6 ) 30÷5/6=30*(6/5 ) 4*(3/2 )=4÷2/3 ( 4 )÷5/7=4*7/5 3÷4/5=3*5/4 ( 24 )÷7/16=24*(16/7 ) A÷C/B=A*B/C 4÷4/5=5 6÷3/4=8 10÷2/5=25 18÷4/9=81/2 4*4/5=...
时飘13821292722…… [答案] 2/1*2=1 3/1*3=1 3/2*3=2 3/1*6=2 4/3*8=6 5/3*20=12 7/3*14=6 8/7*40=35 4/3*16=12 9/5*27=15 2/1*30=15 12/7*24=14 30/1*30=1 51/9*102=18 19/9*76=36 4/9*8=18 5/8*90=144 99/98*99=98 3/14*6=28 7/1*28=4 10/1*9...
@正辰4999：初中口算题40道急需 - 作业帮
时飘13821292722…… [答案] 1.(1+1/2)(1+1/3)(1+1/4).(1+1/100) 2.(1-1/2)(1-1/3)(1-1/4).(1-1/100) 3.8+2-8+2 4.25*4/25*4 5.7.26-(5.26-1.5) 6.286+198 7.314-202 8.526+301 9.223-99 10.6.25+3.85-2.125+3.875 11.9-2456*21 12.0.5/11.5-4*2...
@正辰4999：初一有理数口算题100道求求大家了,给小弟100道口算题吧,做起来越方便越好的那种口算, - 作业帮
时飘13821292722…… [答案] 2 * 4 = ( ) 8 - 1 = ( ) 10 + 54 = ( ) 64 - 5 = ( ) 2 + 64 = ( ) 1 * 8 = ( ) 22 - 7 = ( ) 39 - 23 = ( ) 82 - 78 = ( ) 3 * 5 = ( ) 47 + 25 = ( ) 57 + 43 = ( ) 8 * 1 = ( ) 5 + 28 = ( ) 5 + 43 = ( ) 62 - 60 = ( ) 2 * 8 = ( ) 2 + 35 = ( ) 68 - 15 = ( ) 2 * 8 = ( ) 1 * 7 = ( ) 17 + 7 = ( ) 3 * 9 ...
@正辰4999：初中负数乘法口算题300道负数口算题,不要太简单, - 作业帮
时飘13821292722…… [答案] 39+[-23]+0+[-16]= [-18]+29+[-52]+60= [-3]+[-2]+[-1]+0+1+2= [-301]+125+301+[-75]= [-1]+[-1/2]+[+3/4]+[-1/4]= [-7/2]+[+5/6]+[-0.5]+4/5+19/6= [-26.54]+[-6.14]+18.54+6.14= 1.125+[-17/5]+[-1/8]+[-0.6]= 0.75+[-11/4]+0.125+12又5/7+[-3/8]= [-4/9]+[-3/5]+[+11/...
@正辰4999：初中口算练习题 - 作业帮
时飘13821292722…… [答案] 1.(1+1/2)(1+1/3)(1+1/4).(1+1/100) 2.(1-1/2)(1-1/3)(1-1/4).(1-1/100) 3.8+2-8+2 4.25*4/25*4 5.7.26-(5.26-1.5) 6.286+198 7.314-202 8.526+301 9.223-99 10.6.25+3.85-2.125+3.875 11.9-2456*21 12.0.5/11.5-4*2...
@正辰4999：初一有理数加减法口算题和答案(不用写过程)要34道,给50 - 作业帮
时飘13821292722…… [答案] (1)3-8+3=8 (2)-4+7=3 (3)-6-9=-15 (4)8-12=-5 (5)-15+7=-8 (6)0-2=-2 (7)-5-9+3=-11 (8)10-17+8=1 (9)-3-4+19-11=1 (10)-8+12-16-23=-37 (11)-4.2+5.7+10=11.5(12)6.1-4.9+1.8=4.6 (13)-216-157+348+512-678 (14)81.26-293.8+8.74+111 (15)12-(-18)+(-7)...
@正辰4999：20以内退位减法口算题!不要重复的!500道1 - 作业帮
时飘13821292722…… [答案] 20以内退位减法总共也没有500道呀,怎么可能不重复呢?11-9 12-9 13-9 14-9 15-9 16-9 17-9 18-9 11-8 12-8 13-8 14-8 15-8 16-8 17-811-7 12-7 13-7 14-7 15-7 16-711-6 12-6 13-6 14-6 15-6 11-5 12-5 13-5 14-511-4...
@正辰4999：急求150道分数乘除口算题 -
时飘13821292722…… 3.5*200= 1.5-0.06= 0.75÷15= 0.4*0.8= 4*0.25= 0.36+1.54= 1.01*99= 420÷35= 25*12= 135÷0.5= 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6 + 1/2 -1/6 = 7.5-(2.5+3.8)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = 0.51÷17= 32.8+19= 5.2÷1.3= ...
@正辰4999：初中数学智慧口算题 - 作业帮
时飘13821292722…… [答案] 7(2x-1)-3(4x-1)=4(3x+2)-1; (5y+1)+ (1-y)= (9y+1)+ (1-3y); 20%+(1-20%)(320-x)=320*40% 2(x-2)+2=x+1 2(x-2)-3(4x-1)=9(1-x) x/3 -5 = (5-x)/2 2(x+1) /3=5(x+1) /6 -1 (1/5)x +1 =(2x+1)/4 (5-2)/2 - (4+x)/3 =...
@正辰4999：500道分数口算题如(24乘5/4) - 作业帮
时飘13821292722…… [答案] 12÷3/5=12*5/39÷6/7=9*( 7/6 ) 30÷5/6=30*(6/5 ) 4*(3/2 )=4÷2/3 ( 4 )÷5/7=4*7/5 3÷4/5=3*5/4 ( 24 )÷7/16=24*(16/7 ) A÷C/B=A*B/C 4÷4/5=5 6÷3/4=8 10÷2/5=25 18÷4/9=81/2 4*4/5=...
