Math Unit 1

Math Unit 1

Lets Review!

Poll

How are you feeling about Math?

Addition Strategies

• Counting up

• Doubles

• Doubles + 1 (neighbors)

• Making 10s

• Fact Families

• Flip Flop

Subtraction Strategies

• Counting down

• Doubles minus 1

• Fact Families

• Making 10s

• 
  

Fact Families

• 8 + 7 =

• 15 - 7 =

• 15 - 8 =

• 7 + 8 =

Fact Families

• 8 + 7 = 15

• 15 - 7 = 8

• 15 - 8 = 7

• 7 + 8 = 15

Fill in the Blank

Find the sum.

4 + 9 = _

Change the order of the addends to write new equation.

4 + 9 = 13

Fill in the Blank

Find the sum.

8 + 3 + 2 =

Fill in the Blank

Find the sum.

5 + 6 =

Fill in the Blank

Find the difference.

20 - 5 =

Fill in the Blank

Find the difference.

12 - 8 =

Fill in the Blank

Some friends are at a zoo. 8 more join them. Now There are 11. How many friends were there to start?

Fill in the Blank

A treasure chest has 15 jewels. 3 are blue. 8 are green. The rest are red. How many jewels are red?

Fill in the Blank

13 kids are at a library. 5 of them leave. 6 more kids come to the library. How many kids are at the library now?

Multiple Choice

Which doubles can you use to find 4 + 5?

• 2 + 2 = 4

• 5 + 5 = 10

• 4 + 4 = 8

Equations

• balance

  Have to equal the same on both sides of the =

• 
  

• 
  

Multiple Select

Click on ALL of the ODD numbers.

• 15

• 12

• 2

• 1

• 7

Multiple Select

Click on ALL of the EVEN

• 10

• 13

• 2

• 20

• 6

Fill in the Blank

Some friends are at a zoo. 8 more join them. Now there are 11. How many friends were there to start?

Poll

How are you feeling about Math now?