This collection is one of our Primary Curriculum collections - tasks that are grouped by topic.
Subtraction slip
One big triangle
Make one big triangle so the numbers that touch on the small triangles add to 10.
Butterfly flowers
Can you find two butterflies to go on each flower so that the numbers on each pair of butterflies adds to the number on their flower?
How many?
This project challenges you to work out the number of cubes hidden under a cloth. What questions would you like to ask?
What's in a name?
Totality
Cuisenaire counting
Number balance
Can you hang weights in the right place to make the the number balance balanced?
Domino sorting
Number lines
Strike it out
Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.
Sort them out (1)
Sitting round the party tables
Pairs of numbers
The add and take-away path
Half time
What was in the box?
Doing and undoing
How do you see it?
Here are some short problems for you to try. Talk to your friends about how you work them out.
Two spinners
What could it be?
Unit differences
Arranging additions and sorting subtractions
Birthday cakes
Heads and feet
Ladybirds in the garden
Eggs in baskets
Secret number
Annie and Ben are playing a game with a calculator. What was Annie's secret number?
Find the difference
Jumping squares
Number round up
The Brown family
Use the information about Sally and her brother to find out how many children there are in the Brown family.
The tall tower
2, 4, 6, 8
You may also be interested in this collection of activities from the STEM Learning website, that complement the NRICH activities above.