Pre-algebra concepts, geometry, and statistical thinking for seventh grade students.
Always double-check your answers! Estimate first to see if your answer is in the right range. Plug your solution back into the original equation, and check if the math makes sense with the question. Estimating helps you spot mistakes before turning in your work.
Estimating the answer before solving, then verifying with exact calculation.
Substituting your solution back into the equation to make sure it balances.