Make up as many expressions 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 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 5, 7 and 8. Every number should be used not more than once. Use only addition, subtraction and in multiplication. (Hint: Three possible expressions are 5 + (8 - 7), 5 - (8 - 7), (5 x 8) + 7, make the other expressions.)

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 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.

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 (on variables) as you can from three 5,7 and 8. Every number should be used not more than once. Use only addition, subtraction and multiplication. (Hint: Three possible expressions are 5+(8-7), 5-(8-7),(5×8)+7, make the other expressions.)

From expressions using y,2 and 7. Every expression must have y in it. Use only two number operations. These should be different.

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?

How many three-digit numbers more than 600 can be formed by using the digits 2, 3, 4, 6, 7.