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 three-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
Activity:
Base 10 Regrouping
Review the difference between regrouping and mental math strategy
SWB PG 16-19
Debrief:
Reflect on the different strategies
Homework:
U2W2L1HW
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