1st Grade · Logic & Problem Solving
Mystery Numbers
Free printable 1st Grade logic & problem solving worksheet: Mystery Numbers. It practices number riddles (Common Core 1.NBT.B.2). For ages 6-7. Download the PDF, print it, or fill it in online.
Fill in or color online- Grade
- 1st Grade
- Subject
- Logic & Problem Solving
- Skill
- Number riddles
- Ages
- 6–7
- Standard
- 1.NBT.B.2
- Format
- A4 PDF · print or fill in online
About this worksheet
“Mystery Numbers” is sheet 5 of 25 in our free 1st Grade Logic & Problem Solving Worksheets collection, written for children aged 6–7. It focuses on number riddles.
In the set it comes after “Balance the Scales” and before “Odd One Out: Explain Why”. Working through them in that order, one sheet a day, builds the skill a step at a time.
What this worksheet practices
1.NBT.B.2 · Common Core Math · Grade 1
Number & Operations in Base Ten
Children work on place value — ones, tens and hundreds — and using it to compare numbers and to add and subtract.
How to use this worksheet
- 1
On the logic grid sheet, show your child how one ✓ means ✗ everywhere else in that row and column. Once they see it, the puzzles solve themselves.
- 2
Use real objects on a coat hanger or kitchen scale before "Balance the Scales" so "equal" means the same on both sides, not "the answer comes next".
- 3
After "Follow the Arrow Code", let your child write arrow directions for you to follow around the room. Giving exact instructions is harder than following them.
