Fourth graders learn to multiply larger numbers by breaking them apart by place value, multiplying each part, and adding the partial products back together.
Students will be able to…
Multiplication facts only reach so far, but real numbers get big fast. How can place value turn a hard multiplication into a few easy ones?
Project this and answer each question about multiplying multi-digit numbers — read the explanation after each one.
Tap any phase to open the teacher moves and student actions.
You know 3 x 4, but how do you handle 3 x 46 without a calculator?
Students answer questions about multiplying.
Students use partial products.
Students solve and check with estimation.
Students reflect on why place value works.
Aligned to the Common Core State Standards for Mathematics.
Multiply a whole number of up to four digits by a one-digit number using place value strategies.
Solve multistep word problems using the four operations.
Fluently multiply multi-digit whole numbers using the standard algorithm.
Use appropriate tools strategically.
Preview the three formative checks. Tap “Sample answer” to see what mastery looks like — hide them before you print for students.
Have students pick a two-digit by one-digit problem, estimate the answer first, then solve with partial products and compare. A printable multiplication worksheet is in the Mathematics library.
Tap a card to flip it, then rate whether you knew it. Built from this lesson’s vocabulary.
A quick self-check with instant feedback, drawn from this lesson’s key terms.
A print-and-go review sheet with a built-in answer key. Tap “Show answer key” to reveal answers, or print the clean version for students.