What is 12 tens in standard form?

Sherina wrote and solved the equation. x-56=230 x-56-56=230-56 x=174 what was sherina’s error? sherina’s work is correct. sherina only needed to subtract 56 from 230. sherina made a subtraction error when subtracting 56 from 230. sherina should have added 56 to both sides of the equation.

Each unit cost 14p, how much would 942 units cost?

The bottom of a vase is a square.each side measury y+11 units.the square has a perimeter of 55 units what is the value of y?