Define
What is a addend?
A number you add.
800
300 + 42 =
342
89 - 9 =
80
What is the value of 3 in the number below?
836
The value is 30
Because it is in the tens place.
What is the sum?
The answer to an addition problem.
Round 76 to the nearest 10
80
800 + 100 =
900
143 - 43 =
100
How much is it value?
2 quarters, 1 dime, 3 pennies?
63 cents
What is the identity property of addition?
678 + 0 = 678
Round 532 to the nearest 100
500
251 + 89 =
340
748 - 583 =
165
There 5 boys and 5 girls in Mr. Allen's class. What is the fraction?
5 1
____ or _____
5 2
What is the commutative property of addition?
The switcheroo property.
You can add numbers in any order and still get the same sum.
1 + 2 = 3
or
2 + 1 = 3
Round 88 to the nearest 10
90
512 + 450 =
962
379 - 299 =
80
215 bike riders
What is the associative property of addition?
When three or more numbers are added, any two or more can be grouped together and you will get the same sum (answer).
(3 + 7) + 9 = 3 + (7 + 9 )
The same numbers grouped together in a different order, you still get the same sum.
Round 555 to the nearest 100
600
1, 550 + 1, 230 =
2, 780
1,732 - 651 =
1,081
There were 215 jewels sparkling in a cave. Of the jewels, 63 were amethysts and 152 were diamonds. How many more diamonds than amethysts were sparkling in the cave?
89 diamonds