Use rounded values to estimate close the answer to a calculation. This is a useful non-calculator skill. Refresh your knowledge with these guides on rounding and significant figures. Rounding to ...

Use place value cards to practice rounding numbers to the nearest ten and hundred. Warm up with a Mystery Math Mistake to hunt for the mistake made counting up on the number line. Use place value ...

Learning to assess the reasonableness of an answer is an important mathematical skill. Learning to assess the reasonableness of an answer is an important mathematical skill. It’s your child’s way of ...