+/-
Find the sum of 4,321 + 2,543
6,864
The school cafeteria sold 254 cartons of milk on Monday and 312 cartons on Tuesday. How many cartons did they sell in total?
566 cartons
Round 4,682 to the nearest thousand.
5,000
What math term refers to the answer to an addition problem?
Sum
What is 7 x 8?
56
Solve: 5,291 - 3,145.
2,146
A stadium has 8,500 seats. If 5,230 people are currently sitting in the stadium, how many seats are empty?
3,270 seats
Estimate the sum of 312 + 589 by rounding each number to the nearest hundred.
900 (300 + 600)
What math term refers to the answer to a subtraction problem?
Difference
How many minutes are in 2 hours?
120 minutes
Use mental math or patterns to find the missing number: 3,500 + ___ = 4,200.
700
Maya had $150. She bought a pair of shoes for $65 and a jacket for $42. How much money does she have left?
43 (Step 1: 65 + 42 = 107, Step 2: 150 - 107 = 43)
Estimate the difference of 6,742 - 2,199 by rounding each number to the nearest thousand.
5,000 (7,000 - 2,000)
Which property of addition states that the order of the addends does not change the sum?
(Example: 4 + 5 = 5 + 4)
Commutative Property of Addition
What fraction of this shape is shaded if it is split into 4 equal parts and 3 of them are colored in?
3/4 (three-fourths)
Solve this problem by subtracting across zeros: 5,000 - 2,348.
2,652
An amusement park had 12,450 visitors on Saturday. On Sunday, it had 3,120 fewer visitors than on Saturday. How many visitors did the park have over the entire weekend?
21,780 visitors (Sunday: 12,450 - 3,120 = 9,330; Total: 12,450 + 9,330 = 21,780)
A grocery store has 14,392 cans of soup. They sell 4,811 cans. Estimate how many cans are left
by rounding to the nearest thousand.
9,000 cans (14,000 - 5,000)
Which property of addition states that changing the grouping of addends does not change the sum? (Example: (2 + 3) + 4 = 2 + (3 + 4))
Associative Property of Addition
Find the perimeter of a rectangle with a length of 6 cm and a width of 4 cm.
20 cm (6 + 6 + 4 + 4)
Find the value of the variable x in this equation: 14,582 + x = 32,104.
17,522
A library wants to collect 50,000 books. They collected 14,235 books in the first month and 18,960 books in the second month. How many more books do they still need to reach their goal?
16,805 books (Total collected: 33,195; Still needed: 50,000 - 33,195 = 16,805)
Estimate the sum of 24,891 + 13,105 by rounding to the nearest ten-thousand. Is your estimate higher or lower than the exact answer?
30,000 (20,000 + 10,000). It is lower than the exact answer (37,996).
What rule states that when you subtract 0 from any number, the result is the number itself?
Identity Property of Subtraction (or Zero Rule)
Solve for the unknown: 48 / 6 = ___.
8