Patterns, Rules, & Properties
Plus or Minus
Rounding & Estimating
What's the Word, Bird?
Who makes mistakes?
100
What is 10,000 more than 46,215?
56,215
100
3,451 + 2,122 =
5,573
100
Round to the nearest hundred: 786,231
786,200
100
The museum had 4,356 visitors this year and 6,112 visitors last year. How many more visitors did they have last year?
1,756 more visitors
100
8,450-6,891=2,559 What is the correct answer?
1,559
200
358,791 + ? = 358,891
100
200
24,306 - 9,764 =
14,542
200
Round to the nearest ten thousand: 126,815
130,000
200
Mrs. Munsch had $67. She spent $21 on lunch and some on shoes. She has $11 left. How much did she spend on shoes?
$35
200
56,874 + 3,451 = 60,325 What is the mistake and what is the correct answer?
Incorrect fact for 7+5. Answer = 60,335
300
Which rule or property?
7+6=6+7
Commutative
300
381 + 546 + 297 =
1,224
300
Round to the nearest 10 to estimate: 386 + 8,753 =
390 + 8750 = 9,140
300
Mrs. Scholten had $354. She spent $121 on shoes, $67 on a shirt, $23 on a necklace, and $81 on jeans. How much does she have left?
$62
300
What's the mistake? A new car costs $48,362. Mr. Pearson said that rounded to the nearest ten thousand, the cost of the car is $48,000.
Mr. Pearson rounded to the nearest thousand. It should be $50,000.
400
1,000 more than 39,521
40,521
400
70,030 - 68,241 =
1,789
400
Round 4,521 + 8,211 to the nearest thousand then add.
5,000 + 8,000 = 13,000
400
What is the total of weeks 2 and 3?
91,991
400
Mrs. Kellen said there is a 3 in the thousands place of her address. Her address is 4321 N Orchard Ave. What is her mistake?
The 3 is in the hundreds place.
500
Which rule or property?
9+0=9
Identity
500
(35,456 + 78,351) - 67,921 =
45,886
500
Which estimate is correct for 13,567 + 45,632 ?
A. 13,000 + 46,000
B. 13,600 + 45,700
C. 10,000 + 50,000
D. 13,560 +45,640
C. is correct
500
Rounded to the nearest hundred, which two weeks are about 92,300?
Weeks1 & 2
500
Mrs. Harte said that the missing number in this equation is 525,267. What is her error? What is the correct number?
253,371 + ______ = 271,896
She added to try to find the answer. The correct number is 18,525.