2011学年第二学期一年级数学周末练习（1）
班级_______姓名________学号
1．看谁算得快：
① 5 + 6 = 9 + 2 = 7 + 6 = 8 + 4 =
9 + 8 = 8 + 8 = 6 + 9 = 15 + 5 =
19 – 9 = 17 – 6 = 19 – 8 = 16 – 5 =
12 – 4 = 16 – 2 = 15 – 4 = 20 – 9 =
6 + 5 + 4 = 8 + 8 – 6 = 15 – 2 – 3 = 9 + 8 – 10 =
7 + 6 – 10 = 6 + 6 + 6 = 13 – 5 – 6 = 18 – 4 + 2 =
② 12 – ( ) = 6 ( ) – 5 = 8 5 + 3 = ( ) + 2
4 + ( ) = 11 ( ) + 3 =12 ( ) + 7 = 8 + 5
7 + ( ) = 14 9 + ( ) = 15 7 + ( )= 8 + 6
15 – ( ) = 6 ( ) – 4 = 8 14 – 6 = 16 – ( )
( ) – 4 = 8 ( ) – 6 = 8 15 – ( ) = 4 + 6
( ) + 3 =12 ( ) + 7 =15 14 – 6 = 16 – ( )
2．在 里填上“＞、＜、或 =”。
7 + 8 16 15 – 9 6 14 – 9 4 8 + 4 13 – 0
20 9 + 9 18 11 + 8 13 20 – 8 15 – 7 4 + 8
9 1 4 – 5 14 7 + 3 17 9 + 5 16 – 8 5 + 4
3．将数砖墙填完整。
20
10
4 6
1 3 3 3 3 1
9 7
6 4 3 6 4 5
2 1 3 2 1
4．计算三角：
11 5 8 14 7
6 9 7 7 7
4 18 17 8 15 13
5 2
6
7 7 9 11 13
6 8
8 12
5．在下图填上合适的数，使每条线上三个数相加的和与中间数相等。
2 4
9 12
1 3 5 6
6．你有几种填法 3
10
7．（ ）里最大能填几
3+（ ）＜10 7+（ ）＜19 20-（ ）＞3 18-（ ）＞6
（ ）+9＜16 （ ）+6＜15 10＜17-（ ） 13＞（ ）+4