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Vocabulary
Mental Math
Rounding Tens and Hundreds
Rounding Thousands
Rounding Decimals
100
any number between 1 and 9
What is a digit
100
20 + 20
What is 40
100
Round 104 to the tens place
What is 100
100
Round 1499 to the thousands place
What is 1000
100
Round 1.4 to the nearest whole number
What is 1
200
subtracting and adding are examples of this operation
What is inverse operations
200
150 + 42
What is 192
200
Round 256 to the hundreds place
What is 300
200
Round 1501 to the thousands place
What is 2000
200
Round 5.74 to the nearest whole number
What is 6
300
math that you do in your head
What is mental math
300
182 + 26
What is 208
300
Round 147 to the tens place
What is 150
300
Round 48,250 to the thousands place
What is 48,000
300
Round 15.35 to the nearest tenths place
What is 15.4
400
A line on which numbers are marked at intervals
What is a number line
400
456 - 23
What is 433
400
Round 1,022 to the hundreds place
What is 1,000
400
Round 65,899 to the thousands place
What is 66,000
400
Round 158.47 to the nearest whole number
What is 158
500
replaces one number with another number that tells about how many or how much
What is rounding
500
142 - 23
What is 119
500
Round 5,842 to the hundreds place
What is 5,800
500
Round 845,624 to the thousands place
What is 846,000
500
Round 845,712.38 to the nearest tenths place
What is 845,712.4