← All Standards

Grade 1

• Computation & Algebraic Thinking

  • 1.CA
  • 1.CA.1
  • 1.CA.2
  • 1.CA.3

• Data Analysis

  • 1.DA
  • 1.DA.1

• Geometry

  • 1.G
  • 1.G.1

• Number Sense

  • 1.NS
  • 1.NS.2

• Process Standards

  • 1.PS.1
  • 1.PS.3
  • 1.PS.8

Indiana Math Standard: 1.CA.1

Demonstrate fluency with addition facts and the corresponding subtraction facts within 20. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a 10 (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). Model the role of 0 and the equal sign in addition and subtraction using objects or drawings.

Adding and Subtracting Fruit

Use super cute fruit to introduce algebraic thinking to your young math students.

Back to School Math Worksheets

In these math problems, the solution is already given. But another number is missing!

Spring Math Worksheets: Addition and Subtraction

Four sets of 2-digit and 3-digit addition and subtraction practice. But the unknown isn’t where you expect it to be!

Game: Number Scrabble

What if we played Tic-Tac-Toe with numbers and instead of three-in-a-row, we add up to 15? Well… then we’d have Number Scrabble!

The Game of 100

Who can get to 100 first in this simple, but delightful, math game?