Fluently add, subtract, multiply, and divide multi-digit decimals

What you'll learn

1. Add and subtract multi-digit decimals by aligning decimal points and applying the standard addition/subtraction algorithm
2. Multiply multi-digit decimals using the standard algorithm, counting total decimal places in the factors to determine the decimal point placement in the product
3. Divide a decimal by a whole number using the standard long division algorithm with the decimal point placed directly above its position in the dividend
4. Divide a decimal by a decimal by converting to an equivalent problem with a whole-number divisor (multiplying both dividend and divisor by the same power of 10), then applying the division algorithm
5. Use estimation to verify that the decimal point is placed correctly in computed results

Prerequisites

• Fluently divide multi-digit numbers using the standard algorithm