The Subtraction within 20 Mathtivity Cards
is a set of 72 activity cards that have students subtract within 20, identify the missing number, write subtraction equations given addition equations and solve word problems. There are 4 sets of 18 cards. Each set of cards is presented in color and in black and white. The sets included in this packet are:
Set 1: Subtraction Equations
Set 2: The Missing Numbers
Set 3: Opposite Equations
Set 4: Subtraction Word Problems
A recording sheet is provided for each of the card sets. The sets are already differentiated, but you can split the cards into numbers differences above 10 and differences below 10.
Using Mathtivity Cards
These mathtivity cards can be used as a center, or you can hang them around the room and have students walk around and find the cards and record their answers on the recording sheet provided. These cards are based on the Grade 1 Ontario Mathematics expectations but both American and Canadian spelling are provided.
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Looking for the individual card sets?
Time to the Hour and Half Hour
2D and 3D Geometry
Addition to 20
Fact Families with Sums to 20
Canadian Money to 20 Cents
Numbers to 50