Module 2 Lesson 9 Fluently multiply multi-digit whole numbers using the standard algorithm to solve multi-step word problems.

Common Core Standards 5.OA.2 Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them. For example, express the calculation “add 8 and 7, then multiply by 2” as 2 × (8 + 7). Recognize that 3 × (18932 + 921) is three times as large as 18932 + 921, without having to calculate the indicated sum or product. 5.NBT.5 Fluently multiply multi-digit whole numbers using the standard algorithm.

Learning Targets I can fluently multiply multi-digit whole numbers using the standard algorithm to solve multi-step word problems.

Write 45 tenths as a decimal Activate Knowledge Write 45 tenths as a decimal

Write 45 tenths as a word name Activate Knowledge Write 45 tenths as a word name

Activate Knowledge Multiply 45 tenths by 102

Write 4 tenths as a decimal Activate Knowledge Write 4 tenths as a decimal

Write 4 tenths as a word name Activate Knowledge Write 4 tenths as a word name

Activate Knowledge Multiply 4 tenths by 102

Activate Knowledge Divide 4 tenths by 102

Write 3895 thousandths as a decimal Activate Knowledge Write 3895 thousandths as a decimal

Write 3895 thousandths as a word name Activate Knowledge Write 3895 thousandths as a word name

Multiply 3895 thousandths by 103 Activate Knowledge Multiply 3895 thousandths by 103

Write 3895 thousandths as a decimal Activate Knowledge Write 3895 thousandths as a decimal

Write 3895 thousandths as a word name Activate Knowledge Write 3895 thousandths as a word name

Multiply 3895 thousandths by 103 Activate Knowledge Multiply 3895 thousandths by 103

Activate Knowledge 412 × 231 ≈ ____ × _____ = _____

Activate Knowledge 523 × 298 ≈ ____ × _____ = _____

Activate Knowledge 684 × 347 ≈ ____ × _____ = _____

Activate Knowledge 908 × 297 ≈ ____ × _____ = _____

Learn An office space in New York City measures 48 feet by 56 feet. If it sells for $565 per square foot, what is the selling price of the office space? Problem 1

Learn Gemma and Leah are both jewelry makers. Gemma made 106 beaded necklaces. Leah made 39 more necklaces than Gemma. Each necklace they make has exactly 104 beads on it. How many beads did both girls use altogether while making their necklaces? Problem 2

Learn Gemma and Leah are both jewelry makers. Gemma made 106 beaded necklaces. Leah made 39 more necklaces than Gemma. At a recent craft fair, Gemma sold her necklaces for $14 each. Leah sold her necklaces for $10 more. Who made more money at the craft fair? How much more? Problem 2

Practice Mixed Problems 7 11/8 = 8 3/8

Review 3.65