Partial Sum Method
320 + 241 =
500 + 60 + 1 = 561
Use a numberline to show 45 + 28 =
73
123 + 456 =
579
Find the sum of 456 and 123 using the expanded form method
400 + 50 + 6
100 + 20 + 3
= 579
Round 4119 to the nearest ten
4,120
543 + 236 =
700 + 70 + 9 =
Use base ten blocks to show 539 + 421 =
960
263 + 599 =
862
Find the sum of 637 and 252 using the expanded form method
600 + 30 + 7
200 + 50 + 2
= 889
Round 5,816 to the nearest hundred
5,800
822 + 164 =
900 + 80 + 6 = 986
Use a numberline to show 564 + 237 =
801
3,428 + 2,235 =
5,663
What is the sum of 1,152 and 2,534 using the expanded form method?
1,000 + 100 + 50 + 2
2,000 + 500 + 30 + 4
= 3,686
Round 3,525 to the nearest thousand
4,000
375 + 517 =
800 + 80 + 12 = 892
Use base ten blocks to show 1,377 + 2,256 =
3,633
7,421 + 2,362 =
9,783
What is the sum of 2,314 and 5,927 using the expanded form method
2,000 + 300 + 10 + 4
5,000 + 900 + 20 + 7
= 8,241
Round 19,382 to the nearest ten thousand
19,000
667 + 253 =
800 + 110 + 10 = 920
Use a number line OR base ten blocks to show 2,459 + 1,254 =
3,713
128 + 245 + 561 =
934
The expanded form method is:
1,000 + 200 + 50 + 8
4,000 + 700 + 50 + 3
What is the answer?
6,011
Round 463,145 to the nearest hundred thousand
500,000