Math Ch. 2 Review

Greater/Less Than

100

which number is greater? 8 or 6

8

200

Which number is les than? 30 or 20

20

300

Which number is greater than? 200 or 120

200

400

Which number is less than? 1,000 or 3

3

500

Which number is greater? 25 or 35

35

Addition

100

8+3=

11

200

2+0+1=

3

300

5+1+3=

9

400

6+5=

11

500

20+40=

60

Subtraction

100

12-6=

6

200

12-8

4

300

11-7

4

400

4-4=

0

500

20-15=

5

Story Problems

100

There are 10 horses eating. But two horses gallop away. How many horses are eating?

10-2=8 horses

200

There are 9 puppies sleeping in the barn. Then 3 puppies wake up. How many puppies are still asleep?

9-3=6 puppies

300

There are 10 baby chicks. Five are dry_____ are getting wet.

10-5=5 chicks

400

5 chicks are under the mother hen's wings.1 chick is under her right wing ______ are under her left wing.

5-1=4 chicks

500

6 eggs were found on Monday. 5 were found on Tuesday. How many eggs were there altogether?

6+5=11 eggs

Math Vocab

100

What is an addend?

a number that is being added to another

200

what is a sum?

the answer to an addition problem

300

What does Difference mean?

answer to a subtraction problem

400

What is a Doubles addition problem?

when both addends are the same

500

Order property of addition means

even if the addends are switched the sum is still that same

ex. 2+3=5

     3+2=5