Subtracting Decimals

If I subtract: 8.9 - 10.2 = x , my answer is going to be?

• 0

• Positive

• Negative

• Minus

What is this number in number form?

100 + 40 + 2 + 1/10 + 2/100 + 3/10000

• 100,402.123

• 142.123

• 142.0132

• 142.1203

Today's high temperature to be 23.5 degrees Celsius. At sunrise, it was 11.4 degrees Celsius. How much has the weather changed since sunrise?

• 9.1

• 12.1

• 12.1 degrees Celsius

• 13.1 degrees Celsius

Write this number in number form

Five hundred sixty-one thousand two hundred fifty and forty-two hundredths

(a)  

In this number: 78,548,790,452,378,942,389.4173

The 1 is what place value?

• Hundreds

• Tens

• Thousandth

• Hundredth

Write how much cake is left as a decimal.

(a)  

234.5 - 12.34 = 11.11 is incorrect. What happened?

• Nothing. This answer looks good to me.

• The were not enough 100s.

• The decimals need to be lined up.

4.7395 is a number. The 9 can be represented as a fraction how?

• 9/10

• 9/100

• 9000/1

• 9/1000

What number is in the thousandths place?

50274.29136

• 1

• 2

• 3

• 4

True or False: Decimal values are whole numbers.

• False

• True