Adding/Subtracting with Expanded Algorithm
What is the value of the 7 in 739
700 or hundred
126 + 171
297
574 - 86
488
402 - 139=
263
Are both sides equal (=) or not equal (≠):
36 + 45 ◯ 71
36 + 45 ≠ 71
81 ≠ 71
Using expanded algorithm solve: 546 + 232
500 + 200= 700
40 + 30= 70
6 + 2= 8
Total: 778
415 + 168
583
374 - 176
198
607 - 439=
168
Are both sides equal (=) or not equal (≠):
7 - 3 ◯ 4
7 - 3 = 4
4 = 4
Using expanded algorithm solve this: 550 + 423
500 + 400= 800
50 + 20= 70
0 + 3= 3
873
438 + 233
671
385 - 296
89
300 - 157=
143
Find the value of n:
9 + n= 11
11 - 9= 2
Using expanded algorithm solve 738 - 523
738 - 500= 238
238 - 20= 218
218 - 3= 215
Total: 215
441 + 399
840
948 - 569=
379
600 - 439=
161
Find the value n:
13 - n= 5
13 - 5=
8
Using expanded algorithm solve: 755 - 315
755 - 300= 455
455 - 10= 445
445 - 5= 440
Total 440
Ms. Lane drove 278 miles on Tuesday and 342 miles on Wednesday. Write and solve a number sentence to find how far she drove in all.
342 + 278= 620
Mike and Linda are playing a game. Mike has 528 points. Linda has 341 points. How many more points does Mike have than Linda?
187
Dina counted 204 items on the library cart. There were 91 fiction books. Write and solve a number sentence to find how many other types of items are still on the library cart.
204 - 91=
Total: 113
Ollie has 417 pokemon cards. He gives Jasmine some pokemon cards. If he has 212 left, how many pokemon cards did he give Jasmine?
417 - n= 212
417 - 212= 205