Subtract Across Zeros
500 - 25
475
Use the identity property to solve for the unknown:
27 + __ = 27
0
679 - 297
382
348 rounded to the nearest ten
350
100 - 45 = x
What is the value of x?
x = 55
100 - 79
21
Use the commutative property to find the unknown:
473 + 87 = 87 + ___
473
267,894 + 1,000
268,894
Round to the nearest thousand to estimate the sum of 3,799 and 1,038
5,000
x - 13 = 20
x = 33
600 - 447
153
What property is represented in this equation:
3 + 2 = 2 + 3
commutative property
34,762 + ___ = 34,862
100
143 rounded to the nearest hundred
100
Liz had some Pokemon cards. Then she got 25 more. Now she has 89. How many Pokemon did she have in the beginning?
64 Pokemon cards
20,800 - 14,732
6,068
Which property is represented in this equation:
9 + (3 + 7) = (9 + 3) + 7
associative property
3,350 + 1,209
4,559
35,209 rounded to the nearest thousand
35,000
780 + x = 1,230
x = 450
8,000 - 397
7,603
Which property states that when three or more numbers are added, the sum is the same regardless of which numbers are added together first.
associative property
99,500 - 53,967
45,533
Round to the nearest hundred to estimate the difference of 2,187 - 1,549
700
Tom had $65. He bought a pair of sneakers that cost $40. Then, he received $20 as a gift for his birthday. Finally, he bought a new Xbox game. Now he has $18. How much did the Xbox game cost?
the Xbox game cost $27