Estimate Sums & Differences of Mixed Numbers

Daniel Math Academy · Grade 5 Math

Estimate Sums & Differences of Mixed Numbers

Skill I.3 · Mixed numbers · ★★☆ Medium · Quarter 3

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Round each mixed number to the nearest whole number. Then estimate.

1. 1
   $8\frac{1}{5}-2\frac{1}{8}\approx$ 
2. 2
   $7\frac{1}{12}-4\frac{7}{8}\approx$ 
3. 3
   $9\frac{1}{4}-7\frac{1}{5}\approx$ 
4. 4
   $3\frac{3}{4}-2\frac{1}{3}\approx$ 
5. 5
   $9\frac{1}{10}-8\frac{1}{12}\approx$ 
6. 6
   $7\frac{7}{8}-4\frac{4}{5}\approx$ 
7. 7
   $8\frac{1}{12}-4\frac{3}{5}\approx$ 
8. 8
   $9\frac{3}{4}-1\frac{5}{8}\approx$ 
9. 9
   $4\frac{1}{8}-2\frac{1}{5}\approx$ 
10. 10
    $9\frac{4}{5}-4\frac{5}{12}\approx$ 
11. 11
    $6\frac{1}{3}-5\frac{1}{10}\approx$ 
12. 12
    $7\frac{3}{4}-4\frac{2}{3}\approx$ 
13. 13
    $9\frac{2}{5}-4\frac{3}{8}\approx$ 
14. 14
    $3\frac{3}{10}-1\frac{3}{8}\approx$ 

Daniel Math Academy · Grade 5 Math

Answer Key

I.3 Estimate Sums & Differences of Mixed Numbers · ★★☆ Medium

1. 1$8-2=6$
2. 2$7-5=2$
3. 3$9-7=2$
4. 4$4-2=2$
5. 5$9-8=1$
6. 6$8-5=3$
7. 7$8-5=3$
8. 8$10-2=8$
9. 9$4-2=2$
10. 10$10-4=6$
11. 11$6-5=1$
12. 12$8-5=3$
13. 13$9-4=5$
14. 14$3-1=2$