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.
Students can use regrouping to add 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:
Building Blocks Word Problems 9
"OLD SCHOOL ADDITION."
SWB PG 22-23
Debrief:
Why do I take one, but add 10?
Homework:
U2W2L3HW
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