Mental calculations

There are 106 NRICH Mathematical resources connected to Mental calculations
Pass the Peas, Please
game

Pass the peas, please

A game for 2 or more players. Practise your addition and subtraction with the aid of a game board and some dried peas!

Subtraction Squares
game

Subtraction squares

A game for 2 players. Using 2 dice, some counters and a games board, can you form a line of counters from one side of the board to the other?

Street Lamps
problem

Street lamps

Age
11 to 14
Challenge level
filled star empty star empty star
Walking up a steep hill, I pass 10 equally spaced street lamps. How long do I take to walk from the first lamp to the last?
Criss Cross Quiz
game

Criss cross quiz

A game for 2 players. Practises subtraction or other maths operations knowledge.

Wild Jack
game

Wild jack

A game for 2 or more players with a pack of cards. Practise your skills of addition, subtraction, multiplication and division to hit the target score.

Flip Flop - matching cards
problem

Flip flop - matching cards

Age
5 to 11
Challenge level
filled star filled star empty star
Practise your number bonds whilst improving your memory in this matching pairs game.
Calculator Bingo
game

Calculator bingo

This is a game for two players. What must you subtract to remove the rolled digit from your number? The first to zero wins!

Let's Get Flexible!
article

Let's get flexible!

In this article for primary teachers, Ems outlines how we can encourage learners to be flexible in their approach to calculation, and why this is crucial.