Think Addition to Subtract

Think Addition to Subtract
Think Addition to Subtract
Think Addition to Subtract
Think Addition to Subtract
Think Addition to Subtract
Think Addition to Subtract
Think Addition to Subtract
Think Addition to Subtract
Subject
Grade Levels
File Type

PDF

(212 KB|6 pages)
Product Rating
Standards
  • Product Description
  • StandardsNEW

This product will help your students with the concept of "Think Addition to Subtract." It's a great introduction into related facts and fact families, as well. They'll learn to show their work by drawing counters. They'll also use provided drawings for the strategy. There are 2 different activities (4 worksheets) and 2 poster guides.

Log in to see state-specific standards (only available in the US).
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
Relate counting to addition and subtraction (e.g., by counting on 2 to add 2).
Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.
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.)
Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
Total Pages
6 pages
Answer Key
N/A
Teaching Duration
N/A
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