There are 11 NRICH Mathematical resources connected to NC-MultandDivFacts-R2-Y2, you may find related items under NC.Broad Topics > NC > NC-MultandDivFacts-R2-Y2
Are these statements relating to odd and even numbers always true, sometimes true or never true?
Throw the dice and decide whether to double or halve the number. Will you be the first to reach the target?
This problem looks at how one example of your choice can show something about the general structure of multiplication.
This investigates one particular property of number by looking closely at an example of adding two odd numbers together.
This problem challenges you to find out how many odd numbers there are between pairs of numbers. Can you find a pair of numbers that has four odds between them?
This activity is best done with a whole class or in a large group. Can you match the cards? What happens when you add pairs of the numbers together?
If you count from 1 to 20 and clap more loudly on the numbers in the two times table, as well as saying those numbers loudly, which numbers will be loud?
If there are 3 squares in the ring, can you place three different numbers in them so that their differences are odd? Try with different numbers of squares around the ring. What do you notice?
Choose four of the numbers from 1 to 9 to put in the squares so that the differences between joined squares are odd.
How many legs do each of these creatures have? How many pairs is that?
Follow the clues to find the mystery number.