Stage 5Skill #16 of 50Year 3 to Year 5Ages 7–9

Missing Addends to 20 Worksheets

Find the missing addend in addition facts to 20 (e.g. 8 + __ = 15). Customise question counts (10, 20, 30, 40, or 50), choose randomised or fixed standardised forms (Form A / Form B), and print or download free collated A4 worksheets with duplex answer keys.

Example Problem:8 + __ = 15•Free Printable PDF•Reverse Duplex Marking Guide•No Sign-in Required
Stage 5

Missing Addends to 20

Find the missing addend in addition facts to 20 (e.g. 8 + __ = 15).

Questions:
Variant:
Style:

Sample Problems (8 shown of 20 selected)

1.3 + __ = 9
2.7 + __ = 15
3.8 + __ = 16
4.__ + 6 = 17
5.11 + __ = 15
6.__ + 4 = 16
7.__ + 7 = 19
8.3 + __ = 5
Generated worksheets are formatted for standard A4 paper with optimal card spacing, student time limit boxes, and reverse-side duplex answer keys.
Classroom Batch Printing

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Teaching & Curriculum Guide: Missing Addends to 20

Curriculum Context

Stage 5: Early Additive & Multiplicative (Facts to 20 & 2, 5, 10 Times Tables)

Skill #2 of 12 in Stage 5. Focuses on facts to 20 & core times tables.

Fluency Benchmark

18+/20 Recall Fluency

Aim for quick, confident recall within a 5-minute timed sprint before advancing to sequential higher-stage skills.

Classroom Differentiation

Whole-Class Batch Printing

Pair with the Interactive Classroom Tracker to assign this skill to specific students while others work on adjacent skills.

Other Stage 5 Basic Facts Skills

View all 12 skills in Stage 5 →