Math Tools

Build numbers to 9,999, trade 10 for 1, and break blocks apart.

See any number in standard, expanded, and word form.

Line up two numbers and find the place where they differ.

Show jumps, mark points, and round to the nearest ten, hundred, or thousand.

Compare what two digits are worth, in one number or two. See why each place is 10 times the one to its right.

Multiply and divide by 10, 100, and 1,000. Watch every digit move while the decimal point stays put.

Add and subtract whole numbers and decimals in a place value chart and watch every regroup.

Build arrays, turn them around, and split them into smaller facts.

Area model, expanded form, and standard form, one step at a time.

Make equal groups and share counters to multiply and divide.

Tap any fact to see it as an array and find patterns.

Area model, partial quotients, long division, and the box method, one step at a time.

Shade pieces, compare fractions, and find equivalent fractions.

Shade parts of a circle and name the fraction.

Add, subtract, multiply, divide, simplify, and convert mixed numbers, step by step.

Shade tenths and hundredths to build decimals.

Move the hands to show and tell time.

Count coins and bills and make change.

Make shapes and explore area and perimeter.

Plot points and find ordered pairs.

Make and measure angles with a 180° or 360° protractor.

Customary and metric charts. Convert units by multiplying or dividing, step by step.

A big timer and stopwatch for timed tests and centers.

Roll dice and spin spinners for math games.