Addition Within 20 Worksheet
Practice addition facts with sums up to 20, with a number line to count on from the larger number.
A free summer review packet for students finishing 1st grade and heading into 2nd. It revisits the core skills — addition and subtraction within 20, place value, comparing numbers, fact families — and eases into early 2nd grade work like skip counting and telling time. Every worksheet has an answer key.
Parents who want to prevent the summer slide, teachers sending home a review packet, and tutors bridging 1st to 2nd grade.
7 printable worksheets with answer keys.
Skills fade over a long summer break unless they get a little practice. This packet keeps a rising second grader sharp by reviewing the heart of first grade — addition and subtraction within 20, place value, comparing numbers, and fact families — and gently previewing second grade with skip counting and telling time.
There’s no need to do it all at once: a page or two a week over the summer is plenty. Each worksheet stands alone with its own answer key, so you can pull exactly what your child needs.
Practice addition facts with sums up to 20, with a number line to count on from the larger number.
Practice subtraction within 20, using a number line to count back or count up to the answer.
Count the tens rods and ones units shown by the base-ten blocks, then write the two-digit number.
Compare two-digit numbers with >, <, or =, looking at the tens first.
Write the four facts in each fact family using the same three numbers.
Fill in the missing numbers as you skip count by 2s, 5s, and 10s — the bridge to multiplication.
Read each clock and write the time. All times are on the hour or half hour.
Yes. Every worksheet in the packet is free to download and print, and each includes an answer key.
Children who just finished 1st grade and are heading into 2nd grade. It reviews 1st grade skills and previews early 2nd grade work.
A page or two a week keeps skills sharp. Follow the suggested four-week plan or pick the topics your child needs most.