Multiple Number Addition: Three-Digit; Four Numbers (A)
In this math worksheet, students solve 30 problems in which four 3-digit numbers are added in a column. There will be regrouping on the page.
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Ten-Frames – A Games Approach to Number Sense
"How can you help students visualize numbers in a way that is compatible with our base-ten number system?" The answer is simple: use ten-frames. Whether they're being used as a part of classroom routines or as instructional tools, this...
K - 3rd Math CCSS: Adaptable
Addition with 3-Digit Numbers #1
Once your mathematicians can add two-digit numbers, it's time to bring on the three-digit addends. Here are 20 practice problems, each involving two whole-number addends. Learners do not need to regroup for any of these, and they have...
2nd - 3rd Math CCSS: Designed
Study Jams! Addition with Regrouping
Zoe needs to back up her music collection, but do her friends have enough space on their computers to help? Find out as you teach your class how to add two- and three-digit numbers with regrouping. Place value is emphasized as both the...
2nd - 4th Math CCSS: Adaptable
Study Jams! Relate Addition & Subtraction
Understanding the inverse relationship between addition and subtraction is essential for developing fluency in young mathematicians. Zoe and RJ explain how three numbers can form fact families that make two addition and two subtraction...
1st - 4th Math CCSS: Adaptable
Multiply Fractions by Whole Numbers: Using Repeated Addition
Prior experience with addition of fractions guides young mathematicians as they learn how to multiply fractions by whole numbers. The first video in this two-part series outlines this process with clear explanations and examples....
4 mins 3rd - 5th Math CCSS: Designed
Add Up To Four 2-Digit Numbers by Using Addition Facts and Friendly Numbers
Learning to recognize friendly numbers is a big step in developing fluency with addition. Looking at multiple real world examples, the instructor models how to rearrange addition number sentences and use friendly numbers to quickly and...
5 mins 1st - 3rd Math CCSS: Designed
Solve Addition Problems: Using Complements of 10
In a base ten number system, knowing the complements of ten is a huge help when learning addition with larger numbers. The third video is this series models how these special pairs of numbers can be used along with expanded notation to...
5 mins 2nd - 4th Math CCSS: Designed