Sums

How do we write "zero plus one equals one?"

• 0 + 1 = 1

• 0 + 1 = 0

• 1 + 0 = 0

• 1 + 1 = 1

1 _ 2 = 3

Draw a MINUS sign

10 + 0 = _

• 0

• 1

• 11

• 10

write this sum in words:

2 + 2 = 3

Is 2 + 2 = 3 the right answer?

• Yes

• No

What is the correct answer then?

2 + 2 = _

• 4

• 2

• 0

5 - 0 = 5

Is this true or false?

• True

• False

Draw a PLUS sign!

Which sum does NOT equal 5?

• 4 + 1

• 10 - 5

• 3 + 2

• 9 - 6