一、    口算（每题0.5分，共24分）

7 + 6 =     5 + 9 =         8 + 7 =       5 + 8 =       7 + 9 =    9 + 8 =       5 + 7 =      8 + 4 =         9 + 3 =      9 + 9 =     3 + 8 =   6 + 5 =         7 + 4 =          8 + 8 =     6 + 8 =      2 + 9 =       7 + 7 =        3 + 7 =        6 + 6 =    6 + 9 =      8 + 6 =     3 + 8 =        5 + 5 =         7 + 8 =       12 – 4 = 

15 – 6 =      14 – 7 =        11 – 8 =        14 – 9 =   15 – 7 =

15 – 9 =    16 – 7 =    13 – 6 =     16 – 9 =    11 – 5 =   12 – 8 =       11 – 7 =        18 – 9 =      17 – 8 =     14 – 8 =    13 – 7 =       15 – 8 =         14 – 5 =      11 – 9 =      17 – 9 =     17 – 9 =      11 – 5 =         13 – 8 =

二、口算（每题1分，共24分）

28 + 20 =   58 – 6 =     66 – 60 =   75 – 30 =   38 + 40 =

71 + 23 =     89 – 8 =        50 + 24 = 4 + 55 =     96 – 20 =    66 – 60 =     38 + 21 =       30 + 34 =       69 – 7 =    59 – 4 = 

73 – 70 =    95 – 50 =       25 + 44 =      62 + 7 =      30 + 49 =    86 – 60 =    91 – 50 =        36 + 30 =       51 + 25 =

三、在（ ）里填上合适的数。（每题2分，共24分）

3 +（ ）=73           5 +（ ）=70           4 +（ ）=17

43 +（ ）=93          38 –（ ）=8            68 –（ ）=48   

（ ）– 6 = 50          （ ）+ 20 = 66           48 =（ ）+20

63=（ ）+13          72=（ ）+ 70            59=（ ）+ 9

四、计算。（每题2分，共28分）

18+9 – 9 =    12 – 8 + 70 =   70 – 30 + 6 =      46 + 40 + 2 = 

99 – 9 – 40 =    5 + 70 – 5 =     9 + 7 + 20 =     14 – 5 + 30 =

30 + 6 + 4 =     55 – 5 + 15 =    36 +30 +20=       5 + 5 5 +20=

13 – 5 + 50=    82 – 80 +8=