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Math

Addition within 2 Digits

Topics

Add any 2 numbers in equation within 20 with strategies: Counting onwards in sequence

Solve addition problems within 20 by counting onwards from a given number, enhancing foundational skills for adding single-digit numbers.

Age Group: Elementary

Add any 2 numbers in equation within 20 with strategies: Make a ten

Solve addition problems within 20 using the 'Make-A-Ten' strategy by breaking down numbers to form 10 first, then adding the remaining number for easier calculations.

Age Group: Elementary

Adding any 1-digit number with any 2-digit number; what to do to jump up a tens place

Add any 1-digit number to any 2-digit number using place value understanding and regrouping strategies to manage the tens place.

Age Group: Elementary

Adding a 10 to any 2-digit number mentally without counting

Add 10 to any 2-digit number mentally by changing only the tens digit, enhancing mental math skills.

Age Group: Elementary

Description

The topic “Addition within 2 Digits” is essential for developing children’s foundational math skills, particularly in addition. Children will learn various strategies to effectively solve addition problems within 20, beginning with simple methods like counting onwards in sequence. This approach enhances their understanding of number relationships and builds confidence in adding single-digit numbers. Additionally, they will explore the “Make-A-Ten” strategy, where they learn to break down numbers to form a total of ten before adding any remaining amounts. This method simplifies calculations and deepens their comprehension of number combinations. Children will also discover how to add a 1-digit number to a 2-digit number by applying their understanding of place value and regrouping. This helps them manage transitions between tens and units effectively, fostering a stronger grasp of multi-digit addition. Furthermore, they will learn to add 10 to any 2-digit number mentally, enhancing their mental math abilities. By focusing on changing only the tens digit, they develop a quick and efficient approach to addition that reinforces their understanding of place value. Overall, this topic equips children with essential addition strategies that promote both accuracy and confidence in their mathematical abilities.