“Singapore Math Level 2A & 2B – Review 6: Fractions and Time” focuses on understanding fractions and time concepts. It helps students learn how to represent and compare fractions, as well as read and calculate time on analog clocks
Singapore Math Level 2A & 2B – Review 6: Fractions and Time solution
1. Which of the following are fractions? Put a check mark (✓) in the correct boxes.
[Note: In this example, (a) shows an undivided circle, (b) represents a rectangle divided into 8 equal parts, and (c) displays a square divided into 2 equal parts. From this, it’s evident that both (b) and (c) represent fractions, as they are divided into equal parts.]
Solution:
Shade the parts of each figure to show the fractions.
[Note: Figure 2 is divided into 6 parts, if we color 5 parts, we will get \frac{5}{6}. Figure 3 is divided into 10 parts, if we color 6 parts, we get \frac{6}{10}. ]
Solution:
Write the correct times on the lines below.
Solution:
4. 10:25
5. 5:00 / 5 o’clock
6. 8:55
7. 7:30
Draw the minute hand on each clock to show the correct time.
[Note: Instead of providing incomplete pictures for questions 8-11, we have included the complete images with the minute hands added in the solution section.]
Solution:
12. Arrange the fractions in each set. Begin with the largest.
\frac{5}{7}, \frac{1}{7}, \frac{6}{7}
Solution:
\frac{6}{7}, \frac{5}{7}, \frac{1}{7}
13. Arrange the fractions in each set. Begin with the smallest.
\frac{4}{8}, \frac{7}{8}, \frac{5}{8}
Solution:
\frac{4}{8}, \frac{5}{8}, \frac{7}{8}
14. Mary left her house at 10:30 A.M. 30 minutes later, she reached her school. At what time did Mary reach her school?
Solution:
10:30 + 0:30 = 11:00
Mary reached her school at 11:00 AM.
15. Leo has a guitar lesson every Saturday. His lesson lasts 1 hour. If his guitar lesson ends at 2:30 P.M., at what time does it start?
Solution:
2:30 – 1:00 = 1:30
His guitar lesson starts at 1:30 PM.
16. All the Grade 1 and 2 students have recess at 9:45 A.M. Recess ends 30 minutes later. At what time does recess end?
Solution:
9:45 + 0:30 = 10:15
Reacess ends at 10:15 AM.
Do the following story problems. Show your work in the space below.
17. Anton and Jack shared a dish of nachos. If Anton ate ½ of it, how much did Jack eat?
Solution:
1 - \frac{1}{2}
= \frac{2}{2} - \frac{1}{2}
= \frac{2 - 1}{2}
= \frac{1}{2}
Jack ate \frac{1}{2} of the dish of nachos.
18. Deepak ate \frac{2}{6} of a melon. John ate \frac{3}{6} of the melon. What fraction of the melon did they eat?
Solution:
D: Deepak
J: John
\frac{2}{6} + \frac{3}{6}
= \frac{2 + 3}{6}
= \frac{5}{6}
They ate \frac{5}{6} of the melon.
19. Harry poured a glass of milk. He drank \frac{4}{7} of it. What fraction of the milk was left in the glass?
Solution:
D: Drank
1 - \frac{4}{7}
= \frac{7}{7} - \frac{4}{7}
= \frac{7 - 3}{7}
= \frac{4}{7}
\frac{4}{7} of the milk was left in the glass.
20. Tariq borrows a book from the library. He reads \frac{2}{5} of it. What fraction of the book does Tariq need to read in order to complete it?
Solution:
R: Read
1 - \frac{2}{5}
= \frac{5}{5} - \frac{2}{5}
= \frac{5 - 2}{5}
= \frac{3}{5}
Tariq needs to read \frac{3}{5} of the book in order to complete it.
