How to learn Grade 1: Mathematics

South Dakota academic standards: Mathematics, Grade 1

0 of 8 concepts ready to learn · Markdown, for your AI

1. Number and Operation in Base Ten · Add and subtract within 100.

1. Adding numbers: Add up to four two-digit numbers using strategies based on place value and properties of operations
2. Addition and subtraction within 1000: Add and subtract within 1000 using concrete models, drawings, and strategies based on place value; understand composing and decomposing tens and hundreds
3. Adding within 100: Add within 100 using strategies based on place value, including adding a two-digit and one-digit number, and a two-digit and a multiple of 10

2. Number and Operation in Base Ten · Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:

1. The two digits of a two-digit number: Understand that the two digits of a two-digit number represent amounts of tens and ones

3. Number and Operation in Base Ten · In the range of 0 - 120

1. Reading and writing numbers to 20: Read and write numerals from 0 to 20
2. Reading and writing numbers to 100: Read and write numerals from 0 to 100
3. Reading and writing numbers to 120: Count to 120 starting at any number less than 120; read and write numerals to 120
4. Counting in 2s: Count in multiples of 2, 5, and 10 (skip counting)