CK-12 Foundation
Ck 12: Math Grade 2
Browse resources related to second-grade math standards. Click on a topic for interactive lessons, videos, and extra practice.
Study Languages
Study Spanish: Cardinal Numbers: 31 1000
This site is a lesson on the cardinal numbers 31-1000 with an explanation of how to change the hundreds to match the nouns they modify.A quiz follows the lesson to test the student's comprehension of these cardinal numbers.
NumberNut
Number Nut: Numbers and Counting: Writing Numbers One Through One Thousand
For this activity, the player must read the number words and click on the correct number symbol from four choices.
NumberNut
Number Nut: Numbers and Counting: Greater Than 1,000
Follow the steps in the examples for place value for numbers greater than 1000 and then practice the skills with the two interactive activities.
PBS
Pbs Learning Media: How Many Earths Fit Inside Jupiter?
Watch this visualization comparing the size of Jupiter to the Earth. Jupiter is so immense almost 1,000 Earths fit inside it. Background information and teaching tips are provided.
NumberNut
Number Nut: Numbers and Counting: Counting From One to One Thousand
A game where the player must first click on the number that is one less than a number between one and one thousand, then on the number that is one more.
Khan Academy
Khan Academy: Start Here! Counting
This lesson focuses on the math needed to solve problems counting. In the first lesson you learned that it was possible to build 1000 possible robots using only a handful of parts. Now suppose the director only asks for a cast of 6...
NumberNut
Number Nut: Numbers and Counting: Comparing Numbers 1 Through 1,000
Quiz where the player looks at two numbers between one and one thousand, and must choose the correct symbol for comparing them (i.e., >, <, or =).
Better Lesson
Better Lesson: Larger Distances
Using the size of the planets, 2nd graders are able to work with numbers to 1,000. This lesson introduces larger numbers (even beyond 1,000) to extend student understanding of the patterns in numbers.
Better Lesson
Better Lesson: Crossing Over 100
Second graders often become confused as they count from one decade to the next. In order to become fluent with operations in addition and subtraction, 2nd graders need to be able to move across decades. This lesson plan includes a...
ICT Games
Ict Games: Shark Numbers
Shark Numbers is a mobile-friendly place value game. The learning objective of this game is to know what each digit in a 3-digit number represents, (for ages 5-8).
Lizard Point Quizzes
Lizard Point: Subtraction Practice
At this site from Lizard Point Consulting, you can practice several different levels of difficulty of subtraction problems that use 1-digit numbers all the way up to 3-digit number subtraction problems that require regrouping. You can...
Khan Academy
Khan Academy: Add Using Groups of 10 and 100
Practice making groups of 10 and 100 while adding 3-digit numbers. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.