Here are the answers for today’s maths learning.
TGB: adding and counting on within 20.
Starter
Make these statements true. (Remember the crocodile eats the biggest number)
14 < 32 (any number more than 14)
25 > 12 (any number less than 25)
32 = 32
11 > 9 (any number less than 11)
22 < 23 (any number more than 22)
41 = 41
Here are some questions for you to have a go at.
There are 9 children on the bus. 5 more children get on the bus.
How many children are on the bus now?
9 + 5 = 14
Here are some questions for you to have a go at.
Miss Lotysz has 4 coins. Miss Lister gives her 7 more.
How many coins does Miss Lotysz have now?
Use the number line to help you.
4 + 7 = 11
Here are some questions for you to have a go at.
Use the number lines to help you work out these equations.
2 + 13 = 15
Here are some questions for you to have a go at.
Use the number lines to help you work out these equations.
4 + 9 = 13
Here are some questions for you to have a go at.
Use the number lines to help you work out these equations.
1 + 17 = 18
Challenge
Ron and Mo are working out the equation 3 + 11 on a number line.
Who has worked it out correctly? How do you know?
Ron, because he has counted on 11 from 3, but Mo has counted on 3 more from 11.
Challenge
True or false?
If I add 0 to a number, the number stays the same.
Use a number line or resources to help you if you’re not sure.
True
Challenge
Miss Lotysz is using a number line to help her count 7 girls and 9 boys in her class.
Has she used the number line correctly?
No, because she has started counting from the number six.
Explain your answer.
Challenge
Miss Lister thinks…
When counting on, you always need to start with the greater number.
Is she correct? Explain your answer.
No, you can start with either the smallest or largest number.
Extra challenge
Miss Topliss is counting her books. She has 4 books in her classroom.
Altogether she has 16 books.
How many are outside the classroom?
12
Set a challenge
Can you write a problem for your friends to solve?
Post the problem in the classroom and wait for others to reply.
Keep checking, as you will need to mark their answer.
Don’t forget to share your photos of maths learning, you never know they might appear on the blog!