Illustrative Mathematics: 2.nbt One, Ten, and One Hundred More and Less

What's 1 more or less than a number? What's 10 more or 10 less than a given number? What's 100 more or 100 less than a number? These are the types of problems learners must answer in a six-question activity.

Reinforce addition and subtraction with a 30-problem arithmetic worksheet in which scholars add and subtract numbers between one through 10. 

Let a group of incredibly cute ladybugs help your youngsters learn and practice numbers one through ten. Each card features an image of ladybugs that matches the number on the card. Also included is a template for a wallet designed for...

Math games, especially in the primary grades, provide great opportunities for developing the number sense of young mathematicians. Working in pairs with a deck of single-digit cards, students take turns drawing two cards and reading the...

Have fun while building the number sense of young mathematicians with this list of ten-frame learning games. From developing cardinality and counting skills to learning place value and basic addition strategies, ten-frames are excellent...

Part of building solid number sense is understanding the laws and properties of multiplication and addition. Elementary school students can watch Sal multiply using the number 1. He explains that 1x any number equals that number. He...

In this lesson plan students are given numbers to plot on a number line then choose numbers to compare.

In this lesson plan students use base ten blocks to explore place value.

In this lesson plan students compare equations using greater than, less than, and equal to.

This lesson plan has students compare two numbers using greater than, less than, and equal symbols.