Vocabulary
Find the Sum
Find the missing number
Word Problems
Find the difference
100

What operation is it when we count altogether?

What is addition.

100
1+2=
What is 3.
100
2+ =7
What is 5
100

Its partner numbers are 2 and 5.

What is 7

100

7-5=

What is 2.

200

What operation is it when we remove or our group becomes less?

What is subtraction.

200
5+3=
What is 8
200
6+ =10
What is 4
200

If I have 8 counters in my hand and put 6 in a box, I have this many left in my hand.

What is 2

200

16-5=

What is 11.

300

What do we call the answer in addition?

What is the sum.

300
6+4=
What is 10
300
8- =4
What is 4
300
Cindy has 9 flowers. Sara has some others. Altogether they have 12 flowers. Sara has this many flowers
What is 3
300

27-4=

What is 23.

400

What is the answer in subtraction?

What is the difference.

400
8+5=
What is 13
400
2+ =12
What is 10
400
Jenny has 7 toy cars. Carl has 8 toy planes. How many toys do they have in all.
What is 15
400

38-4=

What is 34.

500

What do we call the diagram we draw to show how three numbers work together and shows 3 circles connecting with lines?

What is a number bond.

500
9+5=
What is 14
500
18- =10
What is 8
500
Jane has 9 balloons. 6 are green the rest are red. How many red balloons does she have?
What is 3
500

68-24=

What is 44.

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