To _______ is to change the value of a number so that it is easier to work with.
to round
100
An ___________ is a number close to an exact value.
an estimate
100
A __________ is a number with one or more digits to the right of the decimal point.
decimal
100
The __________ is the answer to a subtraction problem.
difference
100
A __________ is a period separating the ones and the tenths in a number
a decimals point
200
Round to the nearest whole number: 4.39
4
200
Estimate. round to the nearest whole number: $5.89 + $4.29.
$10
200
A __________ is the answer to an addition problem.
sum
200
Subtract: 3.6 - 2.5
1.1
200
Add: 39.62 + 7.24
11.86
300
Round to the nearest tenth number: 6.54
6.5
300
Estimate. round to the nearest whole number: 94.32 - 22.80.
71
300
Add: 0.29+ 0.44=
0.73
300
Subtract $15.76 - $11.38
$4.38
300
Subtract: 7.17 - 2.70
4.47
400
Round to the nearest tenth: 3.27
3.3
400
Estimate by rounding to the nearest whole number then compare using <, >, or = Which is greater 5.5+ 6.3 or 8.2 + 5.2.
< 8.2 + 5.2
400
Add: 2.67 + 1.38
4.05
400
The computer game that peter wants to buy costs $21.07. he has $17.86. How much more money does he need to play the game?
$3.21
400
Rita has $1.78 in her pocket. She spends $0.25 on a banana. How much money does she have left?
$1.53
500
Amy and Kate decide to count the sidewalk squares between their houses. They count exactly 43.34. To the nearest tenth, how many squares are between their houses?
4.3 squares
500
Natalie has picked up $15.25 worth of art supplies at the hobby store. She puts back a sketchpad that costs $4.96. About how much money will the items cost now?
About $10
500
Iris wants to buy a model airplane kit that costs $6.29. She also wants to buy a model car kit that costs $3.89. How much will she pay for both model kits?
$10.18
500
Celia has $16.41 saved. She wants to buy a book that costs $8.56. if she buys the book, how much money will she have left?
$7.85
500
Estimate. Round to the nearest whole number: 13.4 - 6.79.