Envision Topic 3

Adding/Subtracting with Expanded Algorithm

100

What is the value of the 7 in 739

700 or hundred

200

Using expanded algorithm solve: 546 + 232

500 + 200= 700

40 + 30= 70

6 + 2= 8

Total: 778

300

Using expanded algorithm solve this: 550 + 423

500 + 400= 800

50 + 20= 70

0 + 3= 3

873

400

Using expanded algorithm solve 738 - 523

738 - 500= 238

238 - 20= 218

218 - 3= 215

Total: 215

500

Using expanded algorithm solve: 755 - 315

755 - 300= 455

455 - 10= 445

445 - 5= 440

Total 440

Adding 3 Digit Numbers

100

126 + 171 

297

200

415 + 168

583

300

438 + 233

671

400

441 + 399

840

500

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

Subtracting 3 Digit Numbers

100

574 - 86

488

200

374 - 176 

198

300

385 - 296

89

400

948 - 569=

379

500

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

Subtracting across Zeros

100

402 - 139=

263

200

607 - 439=

168

300

300 - 157=

143

400

600 - 439=

161

500

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

Making Sense of Addition/Subtraction Equations

100

Are both sides equal (=) or not equal (≠):

36 + 45 ◯ 71

36 + 45 ≠ 71 

81 ≠ 71

200

Are both sides equal (=) or not equal (≠):

7 - 3 ◯ 4

7 - 3 = 4

4 = 4

300

Find the value of n: 

9 + n= 11

11 - 9= 2

400

Find the value n: 

13 - n= 5

13 - 5= 

8

500

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