Read Large Place Values and Tenfold Changes
Read each digit as its place value.
About 20 minutes, plus any extended practice
Open lesson 1Use Large Whole Numbers and Explain Algorithms
Read larger place values, round them, multiply, and divide with interpreted remainders.
Before you begin
- Read three-digit numbers; multiply one-digit factors; regroup whole-number operations.
Choose by skill rather than age alone. Read with an adult when useful, revisit a lesson, or explore another grade.
Follow the lesson sequence
Round to a Requested Large Place
Identify the stated place, bracket the number between neighboring multiples, and compare its distance to each.
About 20 minutes, plus any extended practice
Open lesson 2Explain Multi-Digit Multiplication with Partial Products
Split the two-digit factor into tens and ones.
About 25 minutes, plus any extended practice
Open lesson 3Divide and Interpret the Remainder
Use the supplied group size to find the greatest number of complete groups.
About 25 minutes, plus any extended practice
Open lesson 4Review and transfer
After the lessons, try 4 new review cases and a practical task. Each answer has an explanation and a link back to the related lesson.
Open the unit reviewGuest answers are temporary. Keep your own paper or document; this unit does not certify completion or record a school grade.
Topic references
- Common Core State Standards, mathematics: 4.NBT.A.1 — Read larger place values, round them, multiply, and divide with interpreted remainders.
- Common Core State Standards, mathematics: 4.NBT.A.2 — Read larger place values, round them, multiply, and divide with interpreted remainders.
- Common Core State Standards, mathematics: 4.NBT.A.3 — Read larger place values, round them, multiply, and divide with interpreted remainders.
- Common Core State Standards, mathematics: 4.NBT.B.5 — Read larger place values, round them, multiply, and divide with interpreted remainders.
- Common Core State Standards, mathematics: 4.NBT.B.6 — Read larger place values, round them, multiply, and divide with interpreted remainders.
These references informed the topic selection. They do not certify complete standards alignment.