1st Grade - Ones And Tens

 
     
 
     
 
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1st
Numbers
Ones and Tens
Count and group objects in ones and tens.
Your child will understand that items can be grouped in ways that make counting easier. Grouping objects into tens and ones will also assist your child in understanding the concept of place value.
 

Sample Problems

(1)

How many tens are in the number 43?

(2)

How many ones are in the number 19?

(3)

In the number 91, what number is in the ones place?

(4)

In the number 18, what number is in the tens place?

(5)

How many stacks of ten are in the number 50?

Learning Tips

(1)

Create a Tens and Ones place mat. To do this, take any sheet of paper and fold in half. Write “TENS” at the top of the left side and “ONES” at the top of the right side. Using any type of manipulatives (cubes, coins, beans, rices, plastic chips, etc). Play number games wherein your represents two digit numbers by stacking sets of tens on the left side and placing individual ones on the right side of the mat. This will provide tangible learning experiences that will help your child gain an understanding of the ten-base system.

(2)

Dimes and Pennies Game: Teach him/her that our number system is a ten-based system. In this system, every number in the tens places is worth ten. So that if he/she sees a 2 in the tens place, it represents 2 sets of ten, which is twenty. Similarly, all the numbers in the ones column represent only one. A tangible way for your child to learn this concept is to play tens and ones with dimes and pennies. Stack up a given nuber of dimes and ask your child to tell you how much it is worth. Do the same for pennies. This is a difficult concept for children to grasp. It will take time and a lot of practice

(3)

Rather than having your child write out his/her numbers using standard digits, have him/her write all numbers by drawing the appropriate number of tens and ones cubes. For example, the number 21 would be drawn with 2 stacks of tens and one single cube. Continue using this method of writing numbers until he/she understands this concept.

(4)

Purchase a set of tens and ones cubes from any educational store and demonstrate the concept for your child. To challenge him/her, you can use these cubes for addition problems to further teach the tens and ones concept.

(5)

Using popsicle sticks, bundle together groups of ten sticks. Create ten sets of ten. Then, using the grouped sticks and single sticks, create numbers with your child to demonstrate that a number in the tens place is worth ten, while a number in the ones place is only worth one.

Extra Help Problems

(1)

How many tens are in the number 40?

(2)

How many ones are in the number 56?

(3)

How many tens are in the number 72?

(4)

How many ones are in the number 15?

(5)

How many tens are in the number 68?

(6)

How many ones are in the number 90?

(7)

How many tens are in the number 34?

(8)

How many ones are in the number 65?

(9)

Write a number with a 2 in the tens place and a 1 in the ones place.

(10)

Write a number with a 6 in the tens place and a 9 in the ones place.

(11)

Write a number with a 3 in the tens place and a 7 in the ones place.

(12)

Write a number with a 9 in the tens place and a 0 in the ones place.

(13)

Write a number with a 1 in the tens place and a 8 in the ones place.

(14)

In the number 30, what number is in the ones place?

(15)

In the number 70, what number is in the tens place?

(16)

In the number 32, what number is in the ones place?

(17)

In the number 3, what number is in the tens place?

(18)

In the number 46, what number is in the ones place?

(19)

In the number 8, what number is in the tens place?

(20)

How many stacks of ten are in the number 9?

(21)

How many stacks of ten are in the number 19?

(22)

How many stacks of ten are in the number 91?

(23)

How many stacks of ten are in the number 99?

(24)

How many stacks of ten are in the number 21?

(25)

How many stacks of ten are in the number 12?

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