Estimate Decimal and Sum Differences 5 Minute Check

Estimate Decimal and Sum Differences

5 -Minute Check Round to the nearest whole number. 1. 45 26. 72 53. 54 67. 15 Round to the nearest tenth. 3. 16 9. 35 48. 51 92. 64

Review Round the number in the indicated place value: 1. 2. 3. 4. 3. 07442; hundredths 1. 352; tenths 4. 12689; ten thousandths 7. 305; whole number

Mini Lesson Look at this decimal 4. 56 What place value do you look at when you round to the nearest whole number? What number is it in this decimal? Is the digit in the hundredths place important when rounding to the nearest whole number? Why or why not? How do you think rounding decimals can help you estimate sums and differences?

Model Soumya is going white water rafting with her family. During their first day, they will travel 6. 5 miles before lunch and 8. 75 miles after lunch. ABOUT how far will they travel on their first day? Concept in Motion!!

Rounding Decimals To estimate the sums and differences of decimals, round each decimal to the nearest whole number. Then add or subtract. 6. 50 – 7 8. 95 – 9 7 + 9 = 16 miles

Guided Practice Neela wants to buy a cell phone that costs $37. 99. She has $45. 25. About how much money will she have left to buy ring tones after she buys the phone?

Activity Find Activity on Task Page on Website Circle Group: Online Practice Triangle Group: Triangle Square Group: Square

Exit Slip Estimate. Round to the nearest whole number. 1. 5 + 2. 3 5. 4 – 3. 61 24. 9 + 9. 8 $8. 75 + $3. 25