Addition Properties
Use the Associative Property to fill in the missing number
14 + (17 + 8) = (14 + __ ) + 8
14 + (17 + 8) = (14 + _17_ ) + 8
Round 68 to the tens place
Round to the nearest ten to estimate
138+435
140+440=580
Round to the nearest hundred to estimate.
794-556
800-600=200
Round 8,594 to the nearest
tens
hundreds
thousands
8,990
8,600
9,000
62 + 21 + 0 = 62 + _____
21
Round 513 to the hundreds place
500
Mrs. Brandon drove from Newkirk to OSU in Stillwater and back again. It is 56 miles to OSU. To the nearest ten miles, about how many miles in all did she travel?
60+60=120
The Newkirk tigers sold 543 tickets to the first home football game. They sold 364 to the second home football game. To the nearest hundred, about how many more tickets did they sell the first game?
500-400=100
Round 1, 597 to the nearest hundred
1,600
Use 55 and 34 to write an equation that shows the Commutative Property:
55 + 34 = ____ + ____
34+ 55
Round 843 to the nearest tens
840
Round to the nearest hundred to estimate.
462+175=
500+200=700
Round to the nearest ten to estimate.
355-177
360-180=180
Round 23,941 to the nearest thousand.
24,000
Use the addition properties to find the missing number.
(431+12)+____=431+(12+98)
98
Round 549 to the nearest
TENS:
HUNDREDS:
550
500
Mrs. Huster drove from Newkirk to Chicago and back again. It is 743 miles to Chicago. To the nearest hundred miles, about how many miles in all did she drive?
700+700=1400
A T-Rex is 468 inches tall. A Brontosaurus is 972 inches tall. To the nearest ten, about how much taller is a brontosaurus than a T-Rex?
970-470=500
Round 394,074 to the nearest ten thousands.
390,000
Use the Commutative Property to rewrite the equation but with the same answer:
23 + 5 + 12 = ___ + ____ + _____
23 + 5 + 12 =
possible answer: 5 + 12 + 23
Round 494 to...
tens place
hundreds place
490
500
Miss Stanton made $1,534 this month. Mrs. Brandon made $2,389 and Mrs. Huster made $3,012. To the nearest ten dollars, about how much money did they make all together?
$1,530+$2,390+$3,010=$6,930
Katie lives 492 miles away from her grandparents. Her cousin, Sarah, lives 39 miles from her grandparents. To the nearest ten, about how many more miles does Katie live from her grandparents, than Sarah does?
490-40=450
Round 98,975 to the nearest...
ten
hundred
thousand
ten-thousand
98,980
99,000
99,000
100,000