Multi-Digit Addition and Subtraction Practice

Estimate sums and differences of large numbers and write missing digits for estimated calculations.

Use mental math strategies like break-apart and make-a-ten to add and subtract mentally.

Find the sum or difference of four-digit numbers and identify missing digits in vertical equations.

Practice subtracting across zeros and compare multi-digit subtraction expressions.

Choose a method to find sums and differences, compare expressions, and find missing digits.

Solve exact answer word problems using a zoo souvenir price list.