Partial Sum Method
320 + 241 =
500 + 60 + 1 = 561
45 + 28 =
73
34 + 41 + 52 =
128
Write 456 in expanded form
400 + 50 + 6
Round 411 to the nearest hundred
400
543 + 236 =
700 + 70 + 9 =
539 + 421 =
960
134 + 203 + 141 =
478
Write 607 in expanded form
600 + 7
Round 581 to the nearest hundred
600
822 + 164 =
900 + 80 + 6 = 986
564 + 237 =
801
428 + 235 + 215 =
878
What is the standard form of the number 300 + 70 + 2
372
Round 352 to the nearest ten
350
375 + 517 =
800 + 80 + 12 = 892
377 + 256 =
633
421 + 362 + 183 =
966
Write the number 2,314 in expanded form
2000 + 300 + 10 + 4
Round 938 to the nearest ten
940
667 + 253 =
800 + 110 + 10 = 920
713
128 + 245 + 561 =
934
Write the number 1,000 + 200 + 8 in standard form
1,208
Round 145 to the nearest ten
150