Arithmetic Operations and Word 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 the volume of shipping containers, and determining the number of bread loaves needed for a given number of customers.

What is the result of subtracting 3.67 from 7.2?

• 4.53

• 3.53

• 3.03

• 2.53

How do you find the difference between 1 and 0.1978?

• By dividing 1 by 0.1978

• By multiplying 1 by 0.1978

• By subtracting 0.1978 from 1

• By adding 0.1978 to 1

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

• 3798 ten-thousandths

• They are equal

• 384 thousandths

• Cannot be determined

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

• 34 ten-thousandths

• 14 ten-thousandths

• 24 ten-thousandths

• 42 ten-thousandths

What is the sum of 1.036 and 2.964?

• 4

• 3

• 5

• 3.5

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

• 32

• 128

• 64

• 16

For every 9 customers, how many loaves of bread are prepared?

• 4 loaves

• 2 loaves

• 3 loaves

• 5 loaves

How many loaves of bread are needed for 63 customers?

• 14 loaves

• 12 loaves

• 16 loaves

• 18 loaves

If the chef prepares 20 loaves, how many customers are there?

• 90 customers

• 70 customers

• 80 customers

• 100 customers

What fraction of a loaf is prepared for each customer?

• 4/9

• 3/9

• 1/9

• 2/9