The Math Club- First Grade Adding and Subtracting from 2-digit numbers
Robin Sellers
4 Followers
Grade Levels
1st
Subjects
Resource Type
Standards
CCSS1.NBT.B.2
CCSS1.NBT.C.4
CCSS1.NBT.C.6
CCSS1.OA.B.3
CCSS1.OA.B.4
Formats Included
- PDF
Pages
33 pages
Robin Sellers
4 Followers
Description
This is the eight module in a set of 10 for first grade. In this module students practice addition strategies on 2-digit numbers with ten sticks, base ten blocks, coins and number lines, and number bonds. Students then move into subtraction strategies using these same models.
There are 16 lessons in this module. There is also a fluency activity for each lesson. Each lesson should take about 10 minutes.
The final lesson is a review of all the content covered in the module.
This is a great resource for small group instruction or tutoring sessions.
I also have modules for kindergarten-3rd graders.
Check out my store for more!
Total Pages
33 pages
Answer Key
N/A
Teaching Duration
N/A
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Standards
to see state-specific standards (only available in the US).
CCSS1.NBT.B.2
Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:
CCSS1.NBT.C.4
Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
CCSS1.NBT.C.6
Subtract multiples of 10 in the range 10-90 from multiples of 10 in the range 10-90 (positive or zero differences), using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used.
CCSS1.OA.B.3
Apply properties of operations as strategies to add and subtract. If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)
CCSS1.OA.B.4
Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.
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