Weight, Volume, and Ratio Problems

This video tutorial covers Unit 5, Lesson 4 on adding and subtracting decimals with many non-zero digits. It includes solving subtraction problems, finding differences in decimals, comparing weights of chocolates, completing calculations for correct sums, calculating volumes of cubes, and determining the number of bread loaves needed for customers. The lesson emphasizes practical applications of decimals in real-world scenarios.

What is the main focus of Unit 5 Lesson 4?

• Adding and subtracting whole numbers

• Adding and subtracting decimals with non-zero digits

• Multiplying and dividing decimals

• Understanding fractions

In the subtraction problem 7.2 - 3.67, what is the result?

• 3.53

• 4.53

• 3.67

• 3.72

How do you handle subtraction when you can't take away from zero?

• Subtract directly

• Ignore the zero

• Borrow from the next digit

• Add more zeros

What is the difference between 1 and 0.1978?

• 0.8022

• 0.1978

• 0.8028

• 0.9022

How is 384 thousandths expressed in ten-thousandths?

• 38.4 ten-thousandths

• 3840 ten-thousandths

• 384 ten-thousandths

• 38400 ten-thousandths

Which is heavier: 384 thousandths or 3798 ten-thousandths?

• 384 thousandths

• 3798 ten-thousandths

• They are equal

• Cannot be determined

What is the difference in weight between the labeled and actual chocolates?

• 40 ten-thousandths

• 44 ten-thousandths

• 42 ten-thousandths

• 48 ten-thousandths

What is the sum of 1.036 and 2.964?

• 3.5

• 3

• 4.5

• 4

What is the sum of 738 thousandths and 262 thousandths?

• 0.8

• 1

• 0.9

• 1.1

How many smaller cubes with side lengths of 2.5 feet fit into a larger cube with side lengths of 10 feet?

• 60

• 70

• 64

• 50