Math Review
Write each decimal in word form. 1.08 ________________________________ 0.632 _______________________________ 2. Write each decimal in standard form. Four hundredths ______________________ Three and sixty two thousandths __________ 3. Add or subtract: 2 3/4 + 1/2= __________________
Find the LCM for each pair of numbers. 4, 6 _______________________________ 3, 12 ______________________________ 2. Add or subtract: 3 ¼ - 1 ¾ = ___________________________ 2 – ½ = ______________________________ Number 1, find the LCM for each pair of numbers. Remember, the LCM stands for Least Common Multiple. To find the Least Common Multiple of 4 and 6, you should draw a capital “M” on your paper. We will call this the M Chart. At the top of one side of the M Chart, write the number 4, and on the other side, write the number 6. Let’s begin. We will begin by writing the first 6 multiples of 4. These are: 4, 8, 12, 16, 20, and 24. Now let’s write the fist 6 multiples of 6. These are: 6, 12, 18, 24, 30, and 36. Now let’s compare those multiples. The LCM of 4 and 6 is 12. Let’s use the same strategy to find the LCM of 3 and 12. We will once again begin with an M Chart. We will put 3 at the top of one side and 12 at the top of the other side. Let’s once again practice writing the first 6 six multiples of 3 and 12. The first 6 multiples of 3 are: 3, 6, 9, 12, 15, and 18. Now we will list the first 6 multiples of 12. They are: 12, 24, 36, 48, 60, and 72. Now compare the multiples. 12 is once again the LCM. Let’s look at number 2. Our directions say to add or subtract. Let’s look at our first set of mixed numbers. We have 3 ¼ minus 1 ¾. To solve, change each mixed number to an improper fraction and subtract. 3 ¼ can be renamed to 13/4, and 1 ¾ can be renamed to 7/4. 13/4 minus 7/4 equals 6/4. To complete the problem, 6/4 should be written in its simplest form. The final answer is 1 ½.
1. What is ½ of 36? 2. What is ¾ of 24? 3. What is ⅝ of 40? 4. If I divide 10 feet of yarn into ¼ size pieces, how many pieces will I have?
1. Estimate the sum or difference by rounding. Show all of your work!!! 368 + 102 = __________________________ 15.8 – 3.2 = __________________________ 3.9 + 7.1 = ___________________________ 2. Add or subtract the decimals. Show all of your work. 21.74 – 9.81 = _______________________ 3.14 + 17.98 = ________________________
1. Estimate the sum or difference by rounding. Show all of your work!!! 742 – 14 = __________________________ 4.10 – 1.98 = __________________________ 63 – 11 = ___________________________ 2. Add or subtract the decimals. Show all of your work. 5.6 – 3.98 = _______________________ 2.25 + 9.5 = ________________________
Divide using partial quotients. 456 ÷ 3 480 ÷ 8 2. Jessica has 14 lbs. of sugar. If she uses 3 lbs. for one batch of cookies, how many total batches can she make? What will you do with the remainder? Click on the following link to view the strategy in action! https://www.educreations.com/lesson/view/slide7/39625039/?s=fl6oVg&ref=link
Divide using partial quotients. 7 835 2 413 ┌ 7 835 2 413 2. I am filling containers with marbles. I have a total of 37 marbles. If 5 marbles fit in 1 container, how many containers do I need for all of my marbles? What will you do with the remainder?
Divide using partial quotients Divide using partial quotients. Draw a picture to represent the division. 6 158 3 246 2. Jamara has 52 pieces of gum to divide equally into 6 bags. How many pieces of gum will go into each bag? What will you do with the remainder?
Divide using partial quotients Divide using partial quotients. Draw a picture to represent the division. 6 366 2 415 2. I have 43 books that need to be put onto shelves. If 4 books will go on 1 shelf, what it is the fewest amount of shelves I need for all the books?
After a party, 1/4 of a cake is leftover After a party, 1/4 of a cake is leftover. If five people share the cake, what fraction will each person get? Ms. Bailey made 1/2 pound of fudge. If she gives the fudge to 8 students and each student gets an equal amount, how much will each student get?