计算.
|
(1)9 +1= |
(2)2 +8= |
|
(3)4 +6= |
(4)3 +7= |
|
(5)39 +1= |
(6)82 +8= |
|
(7)24 +6= |
(8)53 +7= |
|
(9)59 +1= |
(10)62 +8= |
|
(11)44 +6= |
(12)73 +7= |
计算.
|
(1)63 -( )=60 |
(2)92 -( )=90 |
(3)44 -( )=40 |
|
(4)89 -( )=80 |
(5)76 -( )=70 |
(6)58 -( )=50 |
计算.
|
(1)40 -1= |
(2)69 +1= |
(3)89 +1= |
(4)100 -1= |
|
(5)40 +1= |
(5)69 -1= |
(7)99 +1= |
(8)50 -1= |
口算.
|
(1)4.8 +5.7= |
(2)4.36 +1.64= |
|
(3)9 -2.5= |
(4)10 -0.36= |
|
(5)2.39 +1.25= |
(6)5.38 -4.28= |
|
(7)0.36 +0.47= |
(8)0.91 -0.38= |
|
(9)2.4 +3.6-1.2= |
(10)4.5 -1.2+0.4= |
|
(11)7.25 +1.73+2.75= |
(12)10 -0.15-0.85= |
直接写出结果.
(分数,先填分子,后填分母)|
(1) |
(2) |
|
(3) |
(4) |
|
(5) |
(6) |
口算.
(分数,先填分子,后填分母)|
(1) |
(2) |
|
(3) |
(4) |
|
(5) |
(6) |