Estimating Sums and Differences
Estimate the sum:
15.34 + 29.4
6.97 + 4.15
11.12
2.73 - 0.94
1.79
Jojo bought a chicken sandwich from Chick-Fil-A for $4.35 and a small fry for $2.99. How much money did he spend?
$7.34
7.1
Estimate the difference:
92.99 - 11.63
A number between 80 and 85
89.03 + 45.27
134.3
$1.33 - $0.35
$0.98
Zach's pencil before he sharpened it was 12.4 inches long. After he sharpened it, his pencil was 7.64 inches long. How much of the pencil was sharpened?
4.76 inches
j = 145.78 + 12.45
158.23
Estimate the sum:
82.001 + 34.5
A number between 105 and 120
74.4 + 56.23
130.63
178.54 - 25.77
152.77
Jean had a growth spurt and grew 5.46 inches overnight. He is now 57.36 inches tall! How tall was Jean before the growth spurt?
51.9 inches
Jacob has 1.5 cookies. He gives .75 to Sam. How much cookie does Jacob have left?
0.75
Estimate the difference:
181.73 - 43.28
A number between 130 and 145
463.97 + 341.45
805.42
40 - 18.43
21.57
For lunch, Monica bought a sandwich for $6.75, a small salad for $2.49, and an iced tea for $1.50. She paid with a $20 bill. How much change did Monica receive?
$9.26
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Estimate the sum:
327.47 + 298.93
A number between 620 and 635
34.87 + 46.97 + 13.443
95.283
67.1 - 15.698
51.402
For her birthday, Lucy received $20 from her aunt, $15 from her grandmother, and $32 from her cousins. She bought a book for $10.85. How much birthday money does Lucy have left?
$56.15
152.793 + 24.678 + 432.002 + 53.2
662.673