Math Games

Grade 4 - Number

Standard 4.N.6 - Practice estimating multiplication word problems by first rounding the numbers then multiplying them together.

Included Skills:

Demonstrate an understanding of multiplication (2- or 3-digit by 1-digit) to solve problems by:
• using personal strategies for multiplication with and without concrete materials.
• using arrays to represent multiplication.
• connecting concrete representations to symbolic representations.
• estimating products.
• applying the distributive property.
• Model a given multiplication problem, using the distributive property; e.g., 8 × 365 = (8 × 300) + (8 × 60) + (8 × 5).
• Use concrete materials, such as base ten blocks or their pictorial representations, to represent multiplication; and record the process symbolically.
• Create and solve a multiplication problem that is limited to 2- or 3-digits by 1-digit, and record the process.
• Refine personal strategies to increase their efficiency.
• Estimate a product, using a personal strategy; e.g., 2 × 243 is close to or a little more than 2 × 200, or close to or a little less than 2 × 250.
• Model and solve a given multiplication problem, using an array, and record the process.
• Solve a given multiplication problem, and record the process.
• Solve a given problem using the standard/traditional multiplication algorithm.