Counting by Ones

What is the missing number?

30 , ____ , 50 , 60 , 70

• 31

• 20

• 80

• 40

What is the missing number?

____ , 1 , 2

• 1

• 4

• 0

• 3

There are _____ igloos.

There are ____ pieces of atis.

There are _____ bottles of ink.

What is numbers after 6487, 6488, ___, ___, ___

• 6489, 6490, 6491

• 6489, 6491, 6490

• 6490, 6491, 6492

Count on by ones.

What is numbers after 2123, 2124, ___, ___

• 2125 , 2126

• 2128, 2131

• 2127, 2128

What is numbers after 9799, ___, ___, ___

• 9900, 9901, 9902

• 9800, 9801, 9802

• 9780, 9781, 9782

Find the missing number.

540, 543, ______ , 549

• 547

• 546

• 548

Count on by ones.

What is numbers after 1400, 1401, 1402, ....

• 1405

• 1403

• 1404