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G.7 Use expanded form to add three-digit numbers

Add 531 + 112 using expanded form.

531 = 500 + 30 + 1
112 = 100 + 10 + 2

Add the hundreds, the tens, and the ones.

531 + 112 = 600 + +

Now find the sum.

531 + 112 =

Add 412 + 124 using expanded form.

412 = 400 + 10 + 2
124 = 100 + 20 + 4

Add the hundreds, the tens, and the ones.

412 + 124 = 500 + +

Now find the sum.

412 + 124 =

Add 432 + 114 using expanded form.

432 = 400 + 30 + 2
114 = 100 + 10 + 4

Add the hundreds, the tens, and the ones.

432 + 114 = 500 + +

Now find the sum.

432 + 114 =

Add 134 + 255 using expanded form.

134 = 100 + 30 + 4
255 = 200 + 50 + 5

Add the hundreds, the tens, and the ones.

134 + 255 = 300 + +

Now find the sum.

134 + 255 =

Add 461 + 112 using expanded form.

461 = 400 + 60 + 1
112 = 100 + 10 + 2

Add the hundreds, the tens, and the ones.

461 + 112 = 500 + +

Now find the sum.

461 + 112 =

Add 342 + 215 using expanded form.

342 = 300 + 40 + 2
215 = 200 + 10 + 5

Add the hundreds, the tens, and the ones.

342 + 215 = 500 + +

Now find the sum.

342 + 215 =

Add 154 + 111 using expanded form.

154 = 100 + 50 + 4
111 = 100 + 10 + 1

Add the hundreds, the tens, and the ones.

154 + 111 = 200 + +

Now find the sum.

154 + 111 =

Add 273 + 416 using expanded form.

273 = 200 + 70 + 3
416 = 400 + 10 + 6

Add the hundreds, the tens, and the ones.

273 + 416 = 600 + +

Now find the sum.

273 + 416 =

Add 521 + 116 using expanded form.

521 = 500 + 20 + 1
116 = 100 + 10 + 6

Add the hundreds, the tens, and the ones.

521 + 116 = 600 + +

Now find the sum.

521 + 116 =

Add 341 + 526 using expanded form.

341 = 300 + 40 + 1
526 = 500 + 20 + 6

Add the hundreds, the tens, and the ones.

341 + 526 = 800 + +

Now find the sum.

341 + 526 =

Add 462 + 315 using expanded form.

462 = 400 + 60 + 2
315 = 300 + 10 + 5

Add the hundreds, the tens, and the ones.

462 + 315 = 700 + +

Now find the sum.

462 + 315 =

Add 341 + 115 using expanded form.

341 = 300 + 40 + 1
115 = 100 + 10 + 5

Add the hundreds, the tens, and the ones.

341 + 115 = 400 + +

Now find the sum.

341 + 115 =

Add 621 + 113 using expanded form.

621 = 600 + 20 + 1
113 = 100 + 10 + 3

Add the hundreds, the tens, and the ones.

621 + 113 = 700 + +

Now find the sum.

621 + 113 =

Add 242 + 132 using expanded form.

242 = 200 + 40 + 2
132 = 100 + 30 + 2

Add the hundreds, the tens, and the ones.

242 + 132 = 300 + +

Now find the sum.

242 + 132 =

Add 491 + 302 using expanded form.

491 = 400 + 90 + 1
302 = 300 + 0 + 2

Add the hundreds, the tens, and the ones.

491 + 302 = 700 + +

Now find the sum.

491 + 302 =

Add 241 + 113 using expanded form.

241 = 200 + 40 + 1
113 = 100 + 10 + 3

Add the hundreds, the tens, and the ones.

241 + 113 = 300 + +

Now find the sum.

241 + 113 =

Add 254 + 613 using expanded form.

254 = 200 + 50 + 4
613 = 600 + 10 + 3

Add the hundreds, the tens, and the ones.

254 + 613 = 800 + +

Now find the sum.

254 + 613 =

Your score is

The average score is 100%

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