Estimates
What do I round 23 to?
20
254 + 133 =
387
54 * 7
378
12.43 + 14.34 =
26.77
What number is in the tenths place?
2456.14
1
What do I multiply when rounding 13 * 29
10 * 30
135 + 246
381
62 * 75
4,650
56.91 + 33. 65
90.56
What number is in the hundredths places?
431.875
7
What is my magnitude estimate after rounding 35 * 418
(40 * 400 = 16,000)
945 - 362
583
642 * 3
1,926
156.76 - 32.04
124.72
Create a 4 digit number that has:
___ ___ ___ ___
4 in the hundreds place
5 in the thousands place
0 in all other places
5,400
What is my magnitude estimate when multiplying 228 * 914?
(200 * 900 = 180,000)
327.49 + 45.06
372.55
215 * 46
9,890
514.67 - 23.6
491.07
Create a 6-digit number that has:
___ ___ ___ ___ . ___ ___
8 in the tenths place
2 in the thousands place
1 in the ones place
9 in all other places
2991.89
How do I round 34.5 * 23.3 and what is my magnitude estimate?
35 * 23 = 805
204.6 - 95.3
109.3
403 * 234
94,302
6.9 * 5.8
40.02
Create an 8-digit number that has:
___ ___ ___ ___ ___ . ___ ___ ___
5 in the ones place
8 in the thousands place
3 in the ten-thousands place
6 in the tenths place
1 in all other places
38,115.611