Mental Math 10 More/Less Worksheets Grade 1

Mathematics

10 More/Less Mentally

Each printable worksheet below is a full page of practice problems and comes with an answer key that explains how to solve every problem, step by step. Open a worksheet and use the Print / Save as PDF button to download it.

Worksheet 1

7 problems
  1. 2 + 10 = ?
  2. 17 + 10 = ?
  3. Emma has 18 stickers in her sticker book. She gets 10 more stickers from her teacher. How many stickers does Emma have now?

…and 4 more problems

Open & Print Worksheet 1

Worksheet 2

8 problems
  1. There are 3 rows of chairs. Each row has 4 chairs. How many chairs are there in total?
  2. Aroha has 73 building blocks in her toy box. She gives 10 blocks to her little brother to play with. How many building blocks does Aroha have left?
  3. Emma has 12 crayons in her box. She finds 10 more crayons under her desk. How many crayons does Emma have now?

…and 5 more problems

Open & Print Worksheet 2

Worksheet 3

10 problems
  1. 9 + 10 = ?
  2. Emma has 18 stickers in her collection. Her friend Mia gives her 10 more stickers. How many stickers does Emma have now?
  3. Sophia has 21 stickers in her sticker book. Her grandmother gives her 10 more stickers. How many stickers does Sophia have now?

…and 7 more problems

Open & Print Worksheet 3

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