Addition
What is the sum of 80 + 60 = ?
140
What is the difference of 169 - 9 = ?
160
What is the value of the 6 in 645?
I have 876 beads in my art box. About how many beads do I have in my art box?
About 900
What is the sum of 45 + 23 = ?
68
What is the difference of 376 - 235 = ?
141
What is value of the 5 in 45,011
5,000
Sammy bought 12,203 books for the new library. About how many books did she buy to the nearest thousand?
12,000
What is the sum of 46 + 27 = ?
73
What is the difference of 423 - 251 = ?
172
What is 36,045 in expanded form?
30,000 + 6,000 + 40 + 5
Is 500 a reasonable answer to 376 + 289?
What is the sum of 3,248 + 64,369 = ?
67,616
What is the difference of 512 - 393 = ?
119
In which number is the value of the 6 larger
4,630 or 34,126?
4,630
Is 2,000 a reasonable answer to 5,001 - 2,999 ?
What is the sum of 127,576 + 9,243 = ?
136, 819
What is the difference of 2,000 - 999 = ?
1,001
What number could you fill in to this expression to make it true?
__1,111 >31,1_1
Many answers possible
What is a reasonable estimate for how many people fit in the JAO auditorium?
multiple answers
Round to the nearest hundred thousand: 573,500
600,000