1st Grade - One More Or Less

 
     
 
     
 
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1st
Numbers
One More or Less
Identify one more than, one less than, 10 more than, and 10 less than a given number.
The student will be able to identify a number that is one more than, one less than, 10 more than, or 10 less than itself. For example, if we start with the number 15, 14 is one less than, 16 is one more than, 25 is 10 more than, and 5 is 10 less than.
 

Sample Problems

(1)

What is 1 more than 10?

(2)

What is 1 more than 5?

(3)

What is 1 less than 4?

(4)

What is 1 less than 2?

(5)

What is 10 more than 5?

Learning Tips

(1)

Candy Time: Children absolutely love this activity and are very motivated by it. You will need a bag of small candy, such as M&Ms, but make sure it is a type of candy that your child enjoys eating. With this activity you will have you child manipulate the candy to show different examples of a number. For example, start by giving your child 5 pieces of candy. Ask them to show you 3 pieces. When they have done this, ask them to show you one less than three (2 pieces). When they have completed this task, as them to show you one more than 3 (4 pieces), and so on until they are able to easily demonstrate an understanding of this concept. When they have finished practicing this skill they are very excited to be able to eat some of their candy!

(2)

Sticker Fun: For this activity, I would try to use stickers that your child will enjoy keeping, so that they can review this skill at a later time. You will need several pieces of paper, many small stickers (I try to use the same type each time I do the activity), and a marker. Fold a piece of paper into four equal squares. One the top of each square, you will need to write the following labels: 1 more, 1 less, 10 more, and 10 less. Start by giving your child a number. Have them write this number in the middle of the paper and circle it. Next ask them to show how many stickers should go in each box and place them accordingly. For example, if you start with the number 12 in the middle, your child will need to place 11 stickers in the square labeled 1 less. They would continue with the process until they have filled all of the boxes. You can do this activity over several days, using different stickers each day. You can make a book out of these pages to use when reviewing these skills.

(3)

Dot Paint: This activity can be done using dot paint markers, or a small amount of paint, a paint brush and paper. Obtain four pieces of paper. One the top of each page, you will need to write the following labels: 1 more, 1 less, 10 more, and 10 less. Start by giving your child a number. Have them write this number in the middle of each paper and circle it. Next have them paint the correct number of dots to represent the label at the top of the page. After the paint dries, have them touch and count the dots for a more tactile experience. Save the pages to create a book for review and practice!

(4)

Toy Treasures: Go to your local party supply store and visit the “party favor” aisle. Find a small item that your child would enjoy playing with (spider rings, jacks, balls, etc.) Make sure you have at least 20 of the item. Have your child use these treasures to show examples of the concept of 1 more, 1 less, 10 more, and 10 less.

(5)

Play Dough Fun: For this activity, you will start by having your child manipulate a jar of play dough into 20 small balls. Next, give them a number ask them to show the concepts of 1 less, 1 more, 10 more, and 10 less. When they are demonstrating the concept of “less” ask them to “squish” the play dough to show that a certain amount is being removed.

Extra Help Problems

(1)

What number is 1 less than 5?

(2)

What number is 1 more than 3?

(3)

What number is 10 less than 33?

(4)

What number is 10 more than 7?

(5)

What number is 10 more than 2?

(6)

_____ is 1 less than 4

(7)

_____ is 1 less than 6

(8)

_____ is 1 less than 35

(9)

_____ is 1 less than 38

(10)

_____ is 1 less than 52

(11)

What number is 1 less than 89

(12)

What number is1 more than 73?

(13)

What number is 10 more than 21?

(14)

What number is 10 less than 67?

(15)

What number is 10 more than 44?

(16)

____ is 1 more than 14?

(17)

____ is 1 more than 62

(18)

____ is 1 more than 90

(19)

____ is 10 less than 53

(20)

____ is 10 less than 11

(21)

____ is 10 less than 19

(22)

____ is 10 less than 78

(23)

____ is 10 less than 32

(24)

What number is 1 less than 61?

(25)

What number is 10 less than 44?

 

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