U2W2 Lesson 4

 This week, students continue with Number Worlds, Level F, Addition and Subtraction. Students will strengthen computational ability by adding and subtracting three- and four-digit numbers. Students will also continue to improve problem-solving skills by solving more story problems. Skills Focus Use regrouping to add three- and four-digit numbers. Use regrouping to subtract three- and four-digit numbers.

https://connected.mcgraw-hill.com/school/h4b2

Objective: SWBAT......

Students can use regrouping to subtract two four-digit numbers..

Standard

4.OA.3 Solve multistep word problems posed with whole numbers and having whole-number answers using the four operations, including problems in which remainders must be interpreted. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
Vocabulary
regrouping
Sum
Difference
Borrow

Activity:
"OLD SCHOOL SUBTRACTION CONT."
SWB PG 24-25

Debrief:
Why do I take one, but add 10?

Homework:
U2W2L4HW