5.NOS.B.4: Fluently multiply multi-digit whole numbers. a. Apply estimation strategies to estimate products. b. Use computational strategies (e.g., partial products, doubling and halving) efficiently to multiply. c. Use a standard algorithm to multiply. d. Determine and explain when a strategy or algorithm is most efficient.

Fluently multiply multi-digit whole numbers. a. Apply estimation strategies to estimate products. b. Use computational strategies (e.g., partial products, doubling and halving) efficiently to multiply. c. Use a standard algorithm to multiply. d. Determine and explain when a strategy or algorithm is most efficient.

Example Problems

Multiply:

74 \times 8 = ?

Multiply:

39 \times 4 = ?

Multiply:

36 \times 9 = ?

1-on-1 AI tutoring aligned to 5.NOS.B.4. Instant help for students, real-time insights for teachers.

Used in classrooms by 100,000+ students at Baltimore County, Plano ISD, Deer Valley USD, KIPP, and districts nationwide.

Free for teachers, forever →