Properties
Which property does this equation represent?
3 + 2 = 2 + 3
Commutative
312 + 478 = ?
790
50,000 - 24,537 = ?
25,463
Round to the nearest thousand to estimate the sum of 2,378 + 6,709
9,000
(17 + 16) + _____ = 64
31
Which property does this equation represent?
0 + 8 = 8
8 + 0 = 8
Identity
267,894 + 1,000 = ?
268,894
$4,826 - $1,270 = ?
$3,556
Round to the nearest hundred to estimate the difference of 2,187 - 1,549
700
Find the unknown
253 + _____ = 561
308
Which property does this equation represent?
2 - 0 = 2
2 - 2 = 0
Subtraction Rule
69 + 54 = ?
123
4,502 - 340 = ?
4,162
Round to the nearest hundred to estimate the sum of 2,356 + 371
2,800
Find the unknown.
(34 + 51) + ____ = 95
10
Which property does this equation represent?
(1 + 7) + 2 = 1 + (7 + 2)
Associative
3,350 + 1,209 = ?
4,559
112,672 - 69,370 = ?
43,302
Round to the nearest ten to estimate the difference of 3,678 - 2,131
1,550
34,762 + ____ = 34,862
100
Ms. Meyer ate 12 slices of pizza on Friday (don't judge!) and 8 slices on Saturday. Which equation shows the same sum using the Commutative Property?
A. 12 + 8 = 8 + 12
B. 12 + 8 = 12 + 12
C. 12 + 8 = 20 + 8
A. 12 + 8 = 8 + 12
24,153 + 2,310 = ?
26,463
99,500 - 53,967 = ?
45,533
Estimate to the nearest hundred how many steps Ms. Meyer took on Sunday and Monday altogether. (Yes this is true)
6,872 + 8,233
15,100
548 - _____ =208
340