Week 05 · Find the missing number
Number Hunt
Number Hunt
// Riley's number puzzles
⏱ about 15 min
Saturday: Number Hunt
Riley swings his lantern.
"Let us play a hiding game at home!" he says.
"Hide some things. Then find the missing number."
Hunt for hidden numbers
Pick a small group of things.
Count them all first.
Then hide some under a cup or a cloth.
Count what you can see.
Find how many are hiding.
Here are 7 dots. If 4 are hiding, 3 show.
Try it: Number Hunt
Find 5 shoes. Hide 2. How many show?
Find 8 blocks. Hide some. Find the missing number.
Find 10 spoons or cups. Hide some. Count on to 10.
Find 6 leaves or rocks. Hide 6. How many show?
Find 8 blocks. Hide some. Find the missing number.
Find 10 spoons or cups. Hide some. Count on to 10.
Find 6 leaves or rocks. Hide 6. How many show?
WHAT DID YOU LEARN?
- Read the question.
- Tap your answer.
5 + ? = 8
10 - ? = 4
What does the ? do?
◇ HIDE AND COUNT WITH A GROWN-UP
Your grown-up puts out up to 10 blocks.
Count them together.
Close your eyes while they hide some.
Count what is left. Say how many are hiding.
Lift the cup to check. Then trade jobs!
Count them together.
Close your eyes while they hide some.
Count what is left. Say how many are hiding.
Lift the cup to check. Then trade jobs!
Draw a cup hiding some apples. Write the puzzle.
For a grown-up
This week your child found missing numbers.
For 8 - ? = 5, they think 5 + ? = 8.
Ask them to count on out loud.
Mistakes are fine. Count again together.
For 8 - ? = 5, they think 5 + ? = 8.
Ask them to count on out loud.
Mistakes are fine. Count again together.
Great hunting! Next week Chris brings story problems.