➗ Decimals (Tenths, Hundredths)

📖 What the Section Is About

In this section, students learn how to read, write, and compare decimals in tenths and hundredths. They explore the relationship between decimals and fractions, understanding that tenths and hundredths are parts of a whole. Students also practice adding and subtracting decimals with the same place value.

🎯 Learning Objectives

✅ Read and write decimals to tenths and hundredths
✅ Relate decimals to fractions (e.g., 0.3 = 3/10, 0.45 = 45/100)
✅ Compare decimals using <, >, and =
✅ Add and subtract decimals with the same place value
✅ Apply decimals to real-life money and measurement problems

🧮 Examples in Action

Example 1: Writing Decimals as Fractions
• 0.7 = 7/10
• 0.25 = 25/100

Example 2: Comparing Decimals
• 0.6 > 0.45 because six-tenths is more than forty-five hundredths

Example 3: Adding Decimals
• 0.3 + 0.5 = 0.8

Example 4: Real-World Context
• $1.25 + $0.75 = $2.00

🔢 Understanding Tenths and Hundredths
1️⃣ Place Value – Tenths are one place to the right of the decimal point; hundredths are two places
2️⃣ Fraction Connection – Tenths = /10, Hundredths = /100
3️⃣ Comparing – Line up decimal points before comparing or calculating
4️⃣ Adding/Subtracting – Always align decimal points and work place by place

📘 Key Vocabulary and Definitions

• Decimal – A number that shows parts of a whole using place value
• Tenths – One of ten equal parts (0.1)
• Hundredths – One of one hundred equal parts (0.01)
• Decimal Point – A dot that separates whole numbers from fractional parts
• Place Value – The position of a digit that determines its value

🎲 Fun Practice Activities

🎲 Decimal Card Sort – Match decimals with their fraction equivalents
🎲 Decimal War – Flip cards and compare who has the greater decimal
🎲 Money Match – Add and subtract amounts of money with coins and bills

🏡 Offline Homework Idea: “Grocery Decimal Hunt”

Check prices on five grocery items and write them as decimals. Add or subtract them to find totals or differences.