Unit 1 Math Test Review

Dan and Josh have baseball caps. Look at both pictures, then decide which statement is true.

• Dan has an even number of caps, Josh has an odd number of caps

• Dan and Josh both have an even number of caps

• Josh has an even number of caps, Dan has an odd number of caps

• Dan and Josh both have an odd number of caps

Answer explanation

Dan has 15 caps, and Josh has 9 caps. BOTH numbers are odd (1, 3, 5, 7, 9)

Is there an even or odd number of smiley faces, and how do you know?

• Even. The smiley faces can be divided into equal groups of two.

• Even. The smiley faces are round.

• Odd. There is a smiley face left over when you divide them into groups of two.

• Odd. The smiley faces have eyes.

Which expression will have the same result as 11+5?

• 10 + 7

• 8 + 8

• 6 + 9

• 3 + 12

Answer explanation

10 + 7 = 17

6 + 9= 17

3 + 12 = 15

8+8 is the only one that gives you 16. Remember: work them all out

Sean and Madison are buying fruit at the grocery store. Sean buys 5 bananas, and Madison buys 7 oranges. How much fruit did they buy all together?

• 15

• 12

• 10

• 17

Answer explanation

On this one, you need to ADD the two numbers. It is asking how much all together so it wants to know a total amount.

Billy had 15 marbles. He gave his best friend some, and now he has 13 marbles. How many marbles did Billy give away? 15 - ____ = 13

• 5 marbles

• 7 marbles

• 4 marbles

• 2 marbles

Answer explanation

In order to solve, you must subtract 15 - 13 to find the difference.

Which subtraction fact is equal to 7?

• 17 – 8

• 16 – 9

• 15 – 7

• 14 – 8

Which set of bowling pins has an odd number?

• 
• 
• 
• 

Answer explanation

The correct one only had 5 bowling pins. There was one left over meaning it is an odd number.

Amanda created a fact family with the number 12. Here is her first fact 8 + 4 = 12. Which fact is NOT a part of Amanda's fact family?

• 12−8=4

• 12−6=6

• 12−4=8

• 4+8=12

Answer explanation

Remember what we discussed, family families have the SAME THREE NUMBERS, just used in a different order. 12 - 6 = 6 is the only one that didn't match up.

Solve this equation:

______ = 9 +8 + 1

• 20

• 17

• 18

• 9

Answer explanation

I can solve this is many ways, but I'm choosing to make a ten. I know 9+1 = 10, so 10 +8 = 18

What number makes this equation true?

8 + 8 = _____ + 9

• 7

• 2

• 8

• 5