Chapter 4 · Dividing by a one-digit number

Lesson 4.10 · Dividing a three-digit number by a one-digit number (4)

Hua's Classroom for Shanghai Maths — One Lesson One Exercise (English edition, pages 87–89).

Grade 3First Semester Pages 87–89ECNU Press

Lesson Alignment

How this Shanghai Maths lesson connects to learning goals, Common Core, and Eureka Math.

Students will be able to:

Code	Standard (focus for this lesson)
3.OA.A.2	Interpret whole-number quotients.
3.OA.A.3	Multiply/divide within 100 to solve word problems.
3.OA.B.5	Apply properties of operations.
3.OA.B.6	Understand division as unknown-factor.
3.OA.C.7	Fluently multiply and divide within 100.
3.OA.D.8	Two-step word problems.
4.OA.A.3	(preview) Multi-step; interpret remainders.

Shanghai Maths	Focus	Eureka Math
Comparison	Times as many	G3 M1 / M3
Remainder	Recover dividend	G3 M1

Harder three-digit ÷ problems: comparisons and recovering unknowns.

152 literature books is exactly 8 times comic books → comics $= 152 \div 8$.

÷5 gives quotient 123 remainder 2 → number $= 5 \times 123 + 2$.

Quotient = remainder = 3; divisor = 3 × remainder → find dividend.

Quick glossary for this lesson.

Term	Definition
Dividend	The number being divided.
Divisor	The number you divide by.
Quotient	The result of division.
Remainder	What is left after equal groups are made.
Relationship	dividend = divisor × quotient + remainder

Quick reference for this lesson’s exercise answers.