Make up as many express ions with numbers (no variables) as you can, from three numbers 5, 9 and 8. Every number should be used not more than once. Use only addition, subtraction and multiplication.
Make the other expressions.
`9xx(8-5)`

Make up as many express ions with numbers (no variables) as you can, from three numbers 5, 7 and 8. Every number should be used not more than once. Use only addition, subtraction and multiplication. Make the other expressions. (8+5)xx7

Make up as many expressions with numbers (no variables) as you can, from three numbers 2, 3 and 5. Every number should be used not more than once. Use only addition, subtraction and multiplication. Make the other expressions. 2xx(5-3)

Make up as many expressions with numbers (no variables) as you from three numbers 5, 7 and 8. Every number should be used not more than once. Use only addition, subtraction and multiplication.

Sarita and Ameena decide to paly a game of expressions. They take the variable x and the number 3 and see how many expressions they can make. The condition is that they should use not more than one out of the four number operations and every expression must have x in it. Can you help them? Sarita thinks of (x + 3) Then Ameena comes up with (x - 3) Is (3x+5) allowed? Is (3x + 3) allowed?

Get the algebraic expressions in the following cases using variables, constants and arithmetic operations Sum of numbers a and b subtracted from their product.

Form expressions using t and 4.Use not more than one number operation.Every expression must have t in it.

How many 5-digit telephone numbers can be constructed using the digits 0 to 9 if each number starts with 67 and no digit appears more than once?

Express the following numbers in usual form : 5.8 xx 10^12

the 5-digits telephone numbers can be constructed using the digits 0 to 9, if each number starts with 67 and no digit appears more than once are: