Add Decimals

Multiple Choice

What are the success criteria for learning about decimal numbers?

• Use place value to add or subtract

• Use only mental math

• Skip the hundredths place

• Focus on whole numbers only

Multiple Choice

What is the learning intention regarding decimal numbers?

• To compute sums and differences of decimal numbers

• To learn about fractions

• To understand whole numbers

• To memorize multiplication tables

Multiple Choice

What is the first step when adding and subtracting decimals?

• Line up the numbers

• Line up the decimals

• Add or subtract like normal

• Add in placeholders

Multiple Select

What are the rules for adding decimals? (select all correct answers)

• Line up the decimal point

• Add the digits with different place value position

• Bring the decimal point straight down in the sum

• Add the digits in the same place value positions

• Subtract the digits in the same place value positions

Multiple Choice

A koala weighs 1.2 grams at birth,. It gains 0.69 gram in one week. What is the weight of the koala after one week?

• 0.51 gram

• 0.81 gram

• 1.71 grams

• 1.89 grams

Multiple Choice

Samuel buys 2.25 pounds of ham, 1.75 pounds of turkey, and 0.50 pounds of roast beef.  He says he bought a total of 3.50 pounds of sandwich meat.

Is Samuel correct? Choose one option to answer the question ​

• didn't regroup 14 tenths as 4 tenths and 1 one hundredths

• did not regroup the 10 hundredths as 1 tenth

• did not regroup the 15 tenths as 5 tenths and 1 one

• regrouped correctly in the hundredths, tenths, and ones

Multiple Choice

Sidney has 3.5 pounds of almonds and 2.2 pounds of cashews. Which number line shows the number of pounds of nuts Sidney has in all?

Draw

Vera is knitting a scarf. She knits 4.5 inches on Friday, 3.25 inches on Saturday, and 0.75 inch on Sunday. How many inches does she knit in all?

Draw

Decide if each model or expression represents the sum of 2.8 + 0.24 . Choose Yes or No for each model or expression.

Multiple Choice

Lia and James went to the movies. The tickets are $3.00 each.  Lia bought popcorn and a slushy for $8.50 together. James bought a slushy and nachos $12.00 together. How much money did they spend total?

• 26.50
• 2.650
• 3.00
• 53.65

Multiple Choice

Paige was measuring how much taller she got over two years. In the first year she grew 4.62 cm. In the second year she grew 7.7 cm. How much taller did she get altogether?

• 12.3 cm
• 3.8 years
• 12.32 cm
• 12.32 years