口算下面各题.(1) 5 6 + 5 6 =(2) 4 7 - 5 14 =(3) 3 5 - 3 8 =(4) 1-
1个回答
(1)
5
6 +
5
6 =
5
3 ;
(2)
4
7 -
5
14 =
3
14 ;
(3)
3
5 -
3
8 =
9
40 ;
(4) 1-
17
33 =
16
33 .
相关问题
下面各题怎样简便就怎样算.3-(5/14+9/14) 2/5+1/3+2/33—1/8—7/8 5/6—(1/6-3/4
计算下面各题:5/14÷20/21×3/4 [2-(1/2-1/3]×6/5= == == =5/6÷3/4+1/6÷3
计算下面各题怎样简便就怎样计算3/5+1/4-10/7= 14-1/2-2/7= 5/8-(3/4-1/3)= 5/8+
口算下面各题. [4/5]÷8= [1/4]×[7/12]= 5÷[5/8]= 3+3÷7= [3/20]×15= 10
1/2+3/8+1/5+3/4+2/7+5/6+1/9+11/14+5/9+4/7=?
计算下面各题能简算的要简算 5/6-1/2+1/4 5/12+3/4-5/8 4/5-(3/10+1/6) 5/9+7/
直接写出下面各题的得数.1.3+0.4= 5.6+2.1= 3.2+4.5= 5.6-2.2= 7.8-0.8= 9.2
计算下面各题,并且验算 5/6×4/7 5/8-1/3
(1*3*5+3*5*7+5*7*9...+11*13*15)/(2*4*6+4*6*8+6*8*10...+12*14
3,4,5,6,7,8,9.1,2,4,3,5,6,7,8,9.2,3,4,5,6,7,8,9.各打一个成语.