Compensation
Use compensation to solve: 195+203
398
Use Partial sums to solve:438+522
960
Use a number line to solve:716+221
937
Use base ten blocks to solve:278+153
431
use mental math to solve:356+10
366
Use compensation to solve:241+302
543
Use Partial sums to solve:312+349
661
Use a number line to solve:576+328
904
Use base ten blocks to solve:437+248
685
use mental math to solve:475+10
485
Use compensation to solve:452+405
757
Use Partial sums to solve:724+137
861
Use a number line to solve:342+437
779
Use base ten blocks to solve:179+253
432
use mental math to solve:236+100
336
Use compensation to solve:133+303
436
Use Partial sums to solve:239+436
675
Use a number line to solve:289+176
465
Use base ten blocks to solve:520+286
806
use mental math to solve:678+100
778
Use compensation to solve:403+153
556
Use Partial sums to solve:523+267
790
Use a number line to solve:546+436
982
Use base ten blocks to solve:647+206
853
use mental math to solve:891+100
991