Unit 1 Math Review: 2nd Grade

Addition & Subtraction

100

13 + 5=

18

200

3 + 2 + 7=

12

300

14-8=

6

400

4 + 6 + 5 + 5=

20

500

7 + 8 + 5 + 9=

29

Word Problems

100

Doug has 7 pears. He gives 2 pears to his friends. How many pears does Doug have now?

5 pears

200

Phillip has a bag of peanuts. He gives 7 peanuts to Bill. Now he has 15 peanuts. How many peanuts were in the bag to start?

22 peanuts

300

Sara sees 15 horses and 11 pigs at the farm. There are 9 white horses, the rest are black. How many horses are black?

6 black horses

400

There are some dogs at the dog park. Then 10 more dogs join them. Now there are 22 dogs at the dog park. How many dogs were at the dog park at first?

12 dogs

500

There are 4 blue marbles, 7 green marbles, and 6 purple marbles. How many marbles are there altogether?

17 marbles

Math Mountains

100

     16

  /       \

8           ?

8

200

     ?

  /       \

 8          7

15

300

Complete the math mountain and write an equation to go with it.   

    14

  /       \

9           ?

5

9+5=14       5+9=14        14-9=5       14-5=9

400

Complete the math mountain and write an equation to go with it.   

    18

  /       \

9           ?

9

9+9=18    18-9=9

500

Complete the math mountain and write an equation to go with it.   

       ?

  /       \

7           12

19

7+12=19   12+7=19    19-7=12   19-12=7

Write a Problem to Match the Equation

100

5 + 4= 9

Answers Vary

200

6 + 8= 14

Answers Vary

300

12-5=7

Answers Vary

400

16-3=13

Answers Vary

500

10-3=7

Answers Vary

Write an Equation to Show the Problem

100

Luke has 5 red jolly ranchers and 6 blue jolly ranchers. How many jolly ranchers does Luke have?

5 + 6= ?

200

Sam ate 9 carrots. Then he ate 8 more carrots. How many carrots did Sam eat in all?

9 + 8= ?

300

The princess had 6 crowns. The prince had 1 crown. Then the queen gave the princess 2 more crowns. How many crowns does the princess have now?

6 + 2= ?

400

The boy picked 2 oranges yesterday and 7 today. As he was putting the oranges in his bag, 2 fell on the ground and got ruined. How many oranges are in his bag now?

7 oranges

500

The elves made 8 toys yesterday and 9 toys today. They put the toys in a box, and 3 toys fell out and broke. How many toys are left?

14 toys