Warm Up *have work from test moz on desk Practice : with base 10 blocks 1)You have 2 ropes that are 1.15 feet and 2.06 feet. Together how long are they? Practice : 0.85 – 0.25 with base 10 blocks 2) You have a rope that is 1.54 feet and you cut off 0.15 feet. How much rope is left?

Warm Up Practice with a number line 1) I have 1.5 oz of peanut butter left in a jar. I combine it with another jar that has 2.25 oz of peanut butter. How much peanut butter do I have now? Practice 2.5 – 0.25 with a number line 2) I have 3.5 laps to run in P.E. and I have already run 1.25 laps. How many laps do I still need to run?

Announcements Homework Testmoz quiz (addition and subtraction of decimals) Weekly Math #16 (due tomorrow) Weekly Math #17 (due Friday) Remind 101 TO: TEXT

Review Adding Decimals steps EX: Step 1 : Estimate 1 st Step 2 : Line up decimals Step 2b : Insert zeroes as placeholders (not required, but helpful) Step 3 : Add Step 4 : Check with estimate

Subtracting Decimals Ex: – 6.73 – TEST MOZ Step 1 : Step 2 : Step 2b : Step 3 : Step 4 : Estimate 1 st ! Line up decimal points (1 st # on top) Insert zeroes as placeholders (not necessary, but helpful) Subtract Check with estimate

STRETCH BREAK

Zee wants to make 2 liters of pink lemonade for a party. She squeezed the eight lemons she had and got liters of lemon juice. She had 0.35 liters of cranberry juice, and 1.2 liters of water. How much lemonade can she make? How much more or less than 2 liters will she have? Estimate Convert these different amounts into thousandths Find the sum of the total amount of lemonade using expanded form. Find the difference between the sum and 2 liters using expanded form. Compare with estimate

Maura is going on a plane. She can’t have a carryon backpack that weighs more than 10 pounds. She weighed the items she wants to pack on a sensitive scale: book pounds, jacket 3.6 pounds, backpack 1.28 pounds. What is the total weight of these items? Find the sum Does Maura’s backpack weigh less than 10 pounds?

Practice - Adding 1)Aaron’s family has several gold items they want to melt down to make a gold bar. There is a spoon that weighs grams, a broken necklace that weighs grams, and an earring that weighs 15.5 grams. How much is the total weight of gold they have? 2)Nicky is trying to drink 2.5 liters of water a day. She drank liters after breakfast, 1.2 liters after lunch, and 0.75 liters before dinner. How much did she drink all together?

STRETCH BREAK

Walter wanted to compare the great pitcher Walter Johnson’s earned run average to other great pitchers to find out how much lower it was. A lower ERA is better than a higher ERA. He found these pitchers’ lifetime ERA statistics. Walter Johnson Sandy Koufax 2.76 Estimate How is subtracting decimals similar to adding decimals? Why is it important to pay attention to 0 during subtraction? How much better was Walter Johnson’s ERA than Sandy Koufax’s?

Practice - Subtracting 1)Sandy Koufax has a win/loss percentage; Walter Johnson’s is How much higher is Koufax’s win/loss percentage than Johnson’s? 2)Pam needs to take 4.5 milliliters of cough syrup, but only has milliliters. How much more does she need for a full dose?

Practice – Adding & Subtracting 1)Alex’s family went on a hike at Mt. Rainier National Park in Washington. The Silver Falls Trail is a total of 3.1 miles. They hiked miles and reached Silver Falls. How much farther do they have to hike to complete the trail? 2)A cheetah can run kilometers per hour. A pronghorn antelope can run kilometers per hour. How much faster is the cheetah than the antelope? 3)Becky wanted to grow out her hair. She measured the growth each month. The first month her hair grew centimeters. The next month it grew 1.45 centimeters. The third month it grew centimeters. The fourth month it grew inches How many centimeters did her hair grow in the four months? 4)On a field trip, a 6 th grade class traveled kilometers by train, 7 kilometers by bus, and 2.3 kilometers by car. How far did they travel all together?

Work on Test Corrections Bring me your 3 guided notes (+,-, and +/-) When finished work on Weekly Math #16 and #17