Bài ôn toán số 1

Multiple Choice

1 + 1 = ......

• 3

• 2

• 1

• 0

Multiple Choice

2 + 1 = .......

• 1

• 2

• 3

• 4

Multiple Choice

2 + 2 = ......

• 4

• 3

• 2

• 1

Multiple Choice

2 + 3 = .........

• 2

• 3

• 4

• 5

Multiple Choice

1 + 4 = ......

• 2

• 5

• 4

• 3

Multiple Choice

3 + 1 = .......

• 5

• 3

• 4

• 2