Tara spent 3 hours doing homework last night. She spent 1/3 of her time on math, and 1/5 of her time on science. Which method would provide the most reasonable estimate of the total time Tara spent on her math and science homework last night?

51

and 31

Add

51

31

Least common denominator of

1555

155

33

153

158

153

155

hours 3 of 21

to158

round

3 by 21

Multiply B.

When creating a painting, an artist spends about 13% of their time setting up the lighting in their studio. They then spend about 10% of their time pencil sketching their paintings. If it takes the artist 6 hours to complete a painting, which would provide the most reasonable estimate of the total time spent on setting up the lighting and sketching their painting?

% 15 to 13% round

25%10% % 15

25% hours 6

250 by 6 Multiply F. .

Change 25 percent to

the decimal 0.25.

Tamiko performed her 6th grade science experiment and found that about 48% of the boys in her class preferred Sunny D to Tropicana orange juice. If her class had 16 boys, about how many boys preferred Sunny D?

multiply and % 50 to 48% round

boys 16 50%

8boys 16 0.50

D Sunny preferred boys 8 about

Sergei scored 74% on his history test. About how many questions did he correctly answer if the test had 20 questions?

multiply and % 75 to 74% round

questions test 20 75%

15 questions test 20 0.75

questions. 15 about answered correctly Sergio

The Florida Marlins pitchers spend 1/6 of their practice time on bunting. They spend 1/4 of their practice time on stretching and running. If they practice for 4 hours prior to a game, which method would provide the most reasonable estimate of the total time spent on bunting, stretching, and running?

hours 4 of 21

to125

round

41

and 61

Add

41

61

22

122

33

123

125

123

122

4 by 21

Multiply D.

Least common denominator of

12