Chapter 1 Review

Chapter 1 Review

​Value of a digit

​When you have a 2 digit number the ones place always equals that number. The tens place means we count by ten that many times to find the value. Remember our trick too! If the digit is in the tens place just add a 0 to the end for the value!

Multiple Choice

What is the value of the 3 in 73?

• 7

• 3

• 70

• 30

​Skip Counting by 10s

​10, 20, 30, 40, 50, 60, 70, 80, 90, 100

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​Once you pass 100, you start over! Pretend you're counting by 10s again but just add the word 100 in front!

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​110, 120, 130, 140, 150, 160, 170, 180, 190, 200

​What would come next?

Multiple Choice

Skip count by 10.  What comes after 100, 110, 120.....

• 100, 110, 120

• 30, 40, 50

• 130, 140, 150

• 125, 130, 135

​Skip Counting

​Jan counts by 1s to 10. Lets write what numbers she says.

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​Ben counts by 5s to 20. Let's write what numbers he says.

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​Who says more numbers?

Multiple Select

Pick TWO ways to show this number

• 7 tens

  3 ones

• 30 + 7

• 70 + 3

• 3 tens

  7 ones

​Riddle!

​Let's figure out a riddle by placing the numbers in the correct spot.

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​Tom lives on Main Road. He has a 7 in the ones place and a 2 in the tens place in his address. What's his address?

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​__ Main Road

​Look at this example. The tens are first and ones are last.

Multiple Choice

Now you try!  What's my mystery number?  There's an 8 in the ones place and 5 in the tens place.

• 58

• 85

​Skip count by 5s!

​5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100

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​When skip counting by 5s the one place has either a 0 or 5

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​Yes- 20, 25, 30, 35, 40, 45

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​No- 20, 30, 40, 50, 60

Multiple Choice

Which shows skip counting by 5s?

• 5, 6, 7, 8, 9

• 10,20, 30, 40, 50

• 15, 20, 25, 30, 35

​I have 35 notebooks.

​I can make 35 in more than one way using tens and ones.

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​I can have 3 tens and 5 ones.

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​I can have 2 tens and 15 ones.

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​I can have 1 ten and 25 ones.

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​On the next slide draw our your examples on your slate to find your answer!

Multiple Select

Pick 2 ways to make 38

• 1 ten

  8 ones

• 3 tens 

  8 ones

• 2 tens

  18 ones

• 8 tens

  3 ones

​Let's figure out a mystery number!

I have a number that has a digit less than 4 in the ones place and greater than 7 in the tens place. What could it be?

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​First, we look at the ones. It must be less than 4. We need to write down all the numbers less than 4. 3, 2, 1, 0

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​Second, we look at the tens. It must be greater than 7. 8, 9

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​tens ones

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​8 or 9 3, 2, 1, or 0

Multiple Choice

My favorite number has a digit less than 3 in the ones place and greater than 7 in the tens place.  What number could it be?

• 75

• 62

• 81

Poll

Do you feel ready for your math test tomorrow?

• Yes!

• No

• Maybe a little more practice