if 18 - x =5 then x = ...........
13
3
23
use any strategy to find 473 - 275
198
200
189
252 + ...........= 252 ( Identity property of addition)
000,010
0
100
452,652 + 23,5789 = 23,5789 + 452,652 is used ................. property of addition
Associative
Identity
Commutative
487,236 ≈............ (to the nearest ten thousand)
490,000
480,000
480,200
569 + 0= 569 is used ......................property of addition
(29+ 32) + 44 = 29 + (32 + 45) is used ......................property of addition
5,456 ≈............ (to the nearest thousand)
6,000
5,400
5,000
if y+ 345 = 545 then y=
20
3,000,000 + 400,000 + 50,000 + 2,000+ 70 + 8 =
3,452,078
3,450,278
3,425,078