Week 11 · Add and subtract tens
Number Hunt
Number Hunt
// Bigger numbers, tens and ones
⏱ about 15 min
Saturday: Number Hunt
Hazel and Bennie go on a number walk.
"Let us find groups and add them," says Hazel.
"We can use tens and ones," says Bennie.
Hunt for things to add
Find two groups of things at home.
Count each group with tens and ones.
Add them together.
Try it: Number Hunt
Count the books on one shelf.
Count the books on another shelf.
Add the two numbers together.
Count all the spoons and forks in a drawer.
Make tens to help you count.
Count the books on another shelf.
Add the two numbers together.
Count all the spoons and forks in a drawer.
Make tens to help you count.
WHAT DID YOU LEARN?
- Read the question.
- Tap your answer.
26 + 30 = ?
26 + 3 = ?
60 - 30 = ?
When we add 10, what changes?
ONE MORE EACH
- Read the question.
- Tap your answer.
47 + 5 = ?40 - 10 = ?
◇ ADD WITH A GROWN-UP
Your grown-up says a number like 32.
You add 10 and say the answer.
Then you say a number for them.
They add 10 and you check.
Take turns five times.
You add 10 and say the answer.
Then you say a number for them.
They add 10 and you check.
Take turns five times.
Draw two groups you found. Write how many in all.
For a grown-up
This week your child added bigger numbers.
They added tens to tens and ones to ones.
They took away tens, like 70 take away 30.
Ask them to explain how they got each answer.
Blocks or piles of ten help a lot.
They added tens to tens and ones to ones.
They took away tens, like 70 take away 30.
Ask them to explain how they got each answer.
Blocks or piles of ten help a lot.
Great hunting! Next week Lizzy helps us measure and more.