The multiplication and addition rules together
Types of exercises: the multiplication and addition rules together, numbers with exactly one given digit, even numbers and multiples of 5 built from given digits.
Exercises are drawn at random from a large bank - every click gives a different set.
Solved: 0 of 10
Problem
How many four-digit odd numbers contain exactly one digit 5 and exactly one digit 9?
Problem
Four-digit numbers with all digits different are built from the digits 0, 1, 5, 6, 7, 9. How many of them are even?
Problem
How many 4-digit numbers with all digits different are divisible by 5?
Problem
How many four-digit numbers divisible by 5 contain exactly one digit 7 and exactly one digit 8?
Problem
Four-digit numbers with all digits different are built from the digits 0, 4, 5, 6, 8. How many of them are divisible by 5?
Problem
There are 2 soups, 5 main courses and 7 desserts to choose from, all different. In how many ways can two dishes of different kinds be chosen?
Problem
How many three-digit numbers divisible by 5 contain exactly one digit 4 and exactly one digit 9?
Problem
Three-digit numbers with all digits different are built from the digits 0, 1, 4, 5, 6, 9. How many of them are divisible by 5?
Problem
How many even 4-digit numbers have all their digits different?
Problem
How many four-digit even numbers contain exactly one digit 1 and exactly one digit 9?
This address is one particular set - everyone who opens it gets exactly the same exercises. Copy the link from the address bar and send it to the class. You can generate a new set at the top of the page.
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These exercises are part of it. On the board itself you can plot a function, write a formula in LaTeX, or solve a problem together with a teacher or a friend - live, in the browser. Our app is completely free.