options: Understand place value.

Use place value understanding and properties of operations to add and subtract.

Generalize place value understanding for multi-digit whole numbers.
Grade 4 expectations in this domain are limited to whole numbers less than or equal to 1,000,000.

Use place value understanding and properties of operations to perform multi-digit arithmetic.
Grade 4 expectations in this domain are limited to whole numbers less than or equal to 1,000,000.

Use place value understanding and properties of operations to perform multi-digit arithmetic. (A range of algorithms may be used.)

Work with numbers 11–19 to gain foundations for place value.

Extend the counting sequence.

Understand the place value system.

Perform operations with multi-digit whole numbers and with decimals to hundredths.
problem_activity: Stage 5: Subtract Two-digit Numbers
Required Preparation
Materials to Gather
Base-ten blocks
Number cubes
Materials to Copy
Blackline Masters
Target Numbers Stage 5 Recording Sheet

Narrative
Students subtract two-digit numbers to get as close to 0 as possible. Students start their first equation with 100. Then, they take turns rolling the three cubes to get a number to subtract. They choose one of the numbers on the cubes to represent the tens and the other number to represent the ones. Students subtract their tens and ones from the starting number. The difference becomes the first number in the next equation. The player who gets closest to 0 in 6 rounds, without going below 0, is the winner.
Additional Information
Each group of 2 needs 3 number cubes.


correct_option_index: 1