Making 10 Addition Strategy ยท Free Worksheets (Grade 1)
Practice making 10 addition strategy (Grade 1) with free printable PDF worksheets. 4 pre-packaged classroom sets with 100% verified step-by-step answer keys, plus an unlimited live customizer for teachers and homeschoolers.
Mastering Making 10 Addition Strategy: Core Concepts & Mental Models
The Making 10 strategy is one of the most powerful mental math foundations in early elementary arithmetic. Rather than counting on fingers one-by-one, students decompose numbers to bridge to the friendly benchmark number 10.
๐ก Essential Strategies for Making 10 Addition Strategy
๐ฏ Identify the Anchor Addend
Look for the number closest to 10 (like 9, 8, or 7). Determine how many more are needed to reach 10.
โ๏ธ Decompose the Second Addend
Split the other number into two parts: the exact partner needed to make 10, and whatever amount is left over.
โก Add Friendly 10 + Leftover
Combine the anchor with its partner to make 10, then effortlessly add the remainder (e.g. 10 + 3 = 13).
โ ๏ธ Common Mistakes & Teacher Fixes
Why students stumble: Students may split 5 into 1 and 4 when working with 8, forgetting that 8 needs 2 to make 10.
๐ Key Mathematical Vocabulary
Decompose
To break a number apart into smaller parts (e.g., breaking 5 into 2 + 3).
Benchmark 10
The foundational base-ten number 10, which makes adding any single-digit remainder immediate and error-free.
Associative Property
Regrouping addends without changing the sum: (8 + 2) + 3 = 10 + 3 = 13.
๐ฏ 4 Differentiated Classroom Sets Included
Set A: 9s and 8s Anchor Facts (10 Problems)
Core making-10 addition problems starting with 9 or 8 as primary anchors.
Set B: Alternate Numbers (10 Problems)
Parallel difficulty with randomized numbers to eliminate desk-copying in classrooms.
Set C: Mixed 7s, 8s, & 9s Anchors (8 Problems)
Requires decomposing larger parts with anchor addends 7, 8, and 9.
Set D: 3-Minute Speed Sprint (15 Problems)
Rapid-fire addition facts bridging ten for mental automaticity.
โ Frequently Asked Questions
How do you solve a making 10 addition strategy problem step by step?
Here is a worked example: "Solve 8 + 5 using the Making 10 Strategy:". Solution: 1. 8 needs 2 to make 10. 2. Split 5 into 2 + 3. 3. (8 + 2) + 3 = 10 + 3 = 13. Answer: 13.
What is the core learning objective for making 10 addition strategy?
Add numbers within 20 by decomposing the second addend to make a ten first (e.g., 8 + 5 = 8 + 2 + 3 = 10 + 3 = 13). This directly aligns with Common Core Standard CCSS.MATH.CONTENT.1.OA.C.6.
What is the most common mistake students make with making 10 addition strategy?
A frequent pitfall is: "Decomposing the wrong amount from the second addend". Why students stumble: Students may split 5 into 1 and 4 when working with 8, forgetting that 8 needs 2 to make 10. How to fix it: Always ask first: 'How many more does the anchor number need to reach 10?' Write that number down first. (Example: For 8 + 5: 8 + 2 = 10, so 5 must be split into 2 and 3.)
What is included in the 4 differentiated worksheet sets?
Set A covers standard core practice (Core making-10 addition problems starting with 9 or 8 as primary anchors.). Set B is an Anti-Cheat version with alternate numbers to prevent copying. Set C features challenging problems, and Set D is a timed sprint.
Are these making 10 addition strategy worksheets free to print with answer keys?
Yes! Every single worksheet on PanMaths is 100% free with no sign-up needed. Each sheet includes a dedicated Answer Key on Page 2 with step-by-step intermediate evaluation lines for 1-minute grading.