Unit 2 · Standard 6.NOS.3
Multiply Decimals
My Notes Level 1 Support Level 2 Standard Level 3 Enrichment
Today's objectives
Content Objective: I can multiply decimals and place the decimal point correctly in the product.
Language Objective: I can explain my work using the words product, decimal point, estimate, and decimal places.
📖 See Learn It for the explanation and worked examples, and the Vocab tab for the words. These are your notes to fill in and keep.
✏️ Fill in each blank as we go. Use the Word Bank to help you.
👆 Tap any word to see its meaning and a picture.
Level 3: try the blanks from memory first, then check the bank.
- 1The answer to a multiplication problem is the .
- 2The dot that separates whole numbers from parts of a whole is the .
- 3Finding an answer that is close but not exact, to check if a product is reasonable, is to .
- 4The value a digit has based on its position is its .
- 5To place the point in a product, I count the total number of in both factors.
Write About the Math
How do you multiply decimals to find the total cost? How can estimation help you check?¿Cómo multiplicas decimales para hallar el costo total? ¿Cómo te puede ayudar estimar a comprobarlo?
Say your answer to a partner first. Then write it, using at least two of these words:
Model: Rounding the factors gives a reasonable estimate of the product. — Students round to about 5 × $13 = $65 (or 4 × $13) to predict the cost is in the $50-$65 range, naming 4.5 and 12.60 as the factors.
Start
Complete the frames. Use the word bank.Completa las oraciones. Usa el banco de palabras.
- The total cost is $___ because 3.5 × $6.80 = $___, and I can estimate by rounding to ___ × ___ = ___.
- My answer is ___ because ___.Mi respuesta es ___ porque ___.
Build
Write two connected sentences. Use because, so, or but.Escribe dos oraciones conectadas. Usa porque, entonces o pero.
- My claim is ___.Mi afirmación es ___.
- My evidence is ___, so ___.Mi evidencia es ___, entonces ___.
Explain
Write a claim, give math evidence, and explain your reasoning.Escribe una afirmación, da evidencia matemática y explica tu razonamiento.