Mental Math
275+20
295
245+122
367
What number is in the tens place?
4
498-253
245
What number is this: 300 + 40 + 9
349
380-30
350
130+280
410
4,872
What number is in the thousand place?
4
508-325
833
What number is this: 2,000 + 500 + 2
2,502
490+20
510
158+363
521
3,591
What digit is in the hundreds place?
5
365-186
179
378
300 + 70 + 8
810-40
770
192+114
203
2,877
What is the value of the 8?
800
362-125
237
9,741
9,000 + 700 + 40 + 1
345-25
320
284+258
542
1,907
What is the value of the tens?
0
425-289
136
1,010
1,000 + 10