Adding & Subtracting Decimals

Adding Decimals

100

1.1 + 1.2

2.3

200

34.2 + 10.7

44.9

300

99.999 + 99.999

199.998

400

32.35 + 29.9

62.25

500

Add Decimals 24 + 1.456

25.456

No Trivia Questions Here....

100

The color of Cynthia's eyes.

What is blue?

200

The reason why students have not been able to attend school in 2021.

What is COVID 19? [or What is the pandemic?]

300

The main subject Cynthia teaches.

What is [OG] Reading?

400

The season of a regular school year when most students are not attending classes.

What is summer?

500

The name for 12:00 a.m.

What is midnight?

Rounding Decimals

100

Round the decimal to the given place-value. 5.031; hundredths

What is 5.03

200

Round the decimal to the given place-value. 0.00092; thousandths

What is 0.001

300

Round the decimal to the given place-value. 27.35; tens

What is 27

400

Round the decimal to the given place-value. 3.4553; thousandths

What is 3.455

500

Round the decimal to the given place-value. 2.059; hundredths

What is 2.06

Estimating Sums& Differences

100

Estimate using rounding. 38.23 + 11.84

What is 38 + 12 = 51

200

Estimate. 75.38 + 22.04

What is 75. + 22 = 97

300

Estimate 31.29 + 58.07

What is 31. + 58 = 89

400

Estimate 12.045 - 11.81

0

500

Estimate. 6.45 + 5.88 + 5.61 + 6.03

What is 6 + 6 + 6 + 6 = 24

Subtracting Decimals

100

Subtract the decimals 5.9 - 3.4

What is 2.5

200

Subtract the decimals 6.458 - 0.724

What is 5.734

300

Subtract the Decimals 1.325 - 0.081

1.244

400

Subtract the decimals 148.93 - 121.36

What is 27.57

500

Subtract the decimals 248 - 131.48

What is 116.72