Add/Subtract

The purpose of the Add/Subtract Floor Mat and Sticker is to offer a kinesthetic opportunity for children to practice one-to-one correspondence (ability to link a number name with one and only one object), odd and even numbers, addition and subtraction, skip counting by any number, counting forward to 100 and backward from 100 and general number sense.

These activities can be used with the Add/Subtract Mat of any size (mini, regular, or large), the Add/Subtract Outdoor Sticker, the 100 Number Grid Classroom Rug, the Add/Subtract 1-120 Mat, and the 1-100 Stencils. Language, images, and videos will show the regular Add/Subtract mat. Adapt activities as needed for your material.

Grade Range: Kindergarten - Grade 7

Worksheets

    Manipulatives

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    1. Toss, Roll, and Add

      Have a student toss a bean bag onto the mat and read the number. Then, the student rolls a die and adds that amount to their number.

      Grade 1

    2. Count to 100 by 1’s and 10’s

      Have your student start on one and walk each number as they say each number to 100. Clap when they reach a multiple of ten. Have the student go back...READ MORE

      Kindergarten, Grade 1, Grade 2

    3. Toss and Count

      Have a student toss a bean bag onto the mat. Have the student start counting from that number to 100.

      Kindergarten

    4. Barney Bumps

      Have one student stand on one and another on 100. Have each student carefully step on each number (the first student going from one to 100 and the other student...READ MORE

      Kindergarten, Grade 1

    5. Five In a Row -Tic Tac Toe

      Each student receives nine items of the same color to mark spots on the Add/Subtract Mat). The winner is the first to get five of their items (markers) in a...READ MORE

      Grade 2

    6. Dicey Days

      Have each student select a card with a number from 1-100. All students go to the mat and each student stands on his/her number. The instructor rolls a plus/minus die...READ MORE

      Grade 1, Grade 2

    7. Make Tens

      Have students choose a number to stand on. Ask each child how many steps it takes to make a number with 0 in the one’s place. For example, if the...READ MORE

      Grade 1

    8. The Card Rules

      The game is played in pairs. Two cards are drawn from the pile of 1-100 cards. Each student receives one card. The students decide who will stand on the mat...READ MORE

      Grade 2, Grade 3, Grade 4, Grade 5

    9. Rounding

      Select a number and ask your students to round it to the nearest ten. Have them hop to the rounded number. You could also have a student roll a die...READ MORE

      Grade 3

    10. Crazy Countdown

      Students line up at 100. Each student marches on the mat counting down from 100 to one.

      Kindergarten, Grade 1

    11. Dicey Days +10 or +20

      Have each student select a card with a number from 1-100. All students go to the mat and each student stands on their number. The instructor rolls a plus/minus die...READ MORE

      Grade 1, Grade 2

    12. Freezing Tens

      Have a student skip count by 10s to 100. Have another student call out ‘freeze.’ The skip counting student must freeze on that number and says how many 10s the...READ MORE

      Grade 1

    13. Terrific Tens

      Write +10, -10, +20, -20, +30, -30, +40, -40, +50, -50, +60, -60, +70, -70, +80, -80, +90, -90 on index cards. Have students stand on the mat. Choose a...READ MORE

      Grade 1

    14. Sieve of Eratosthenes

      A prime number is a natural number that is greater than one and only has two factors, one and itself. Have your students use the Sieve of Eratosthenes to find...READ MORE

      Grade 7

    15. Shopping

      Have your students toss a bean bag onto the mat. Pretend that is the price (in cents) of an item (of their choosing) that they want to buy. Then have...READ MORE

      Grade 3, Grade 4

    16. Race to One

      Have players line up at 100. Each player rolls the dice. Whoever gets the lowest number goes first. The first player rolls the dice and takes that number of steps...READ MORE

      Grade 1, Grade 2, Grade 3, Grade 4, Grade 5

    17. Tally Treats

      Have students count items with tallies. Each student will add up the tallies and stand on the mat on that number. The student jumps on that number and says that...READ MORE

      Kindergarten, Grade 1

    18. Nifty Nickels

      Place nickels in paper cups. Have enough paper cups for each of your students. The number of nickels can vary in each cup. Students take one paper cup, add up...READ MORE

      Grade 2

    19. Daring Dimes

      Place dimes in paper cups. Have enough paper cups for each of your students. The number of dimes can vary in each cup. Students take one paper cup, add up...READ MORE

      Grade 2

    20. The Sevens Stroll

      Have your students begin by starting at one. Add seven and step on that number. Continue to 98. Next, take the Sevens Stroll backward from 98. Afterward, take the Sevens...READ MORE

      Grade 3