Singapore Math Level 2A & 2B – Unit 16: Lines And Surfaces - 20 Questions
Unit 16: LINES AND SURFACES
1. Look at the below digits.
⒈⒉⒊⒋⒌⒎⒏
Which of the above digits have
(a) straight lines only?
(b) curves only?
(c) straight lines and curves?
Answers(1):
(a) 4, 7
(b) 3, 8
(c) 2, 5
2.
Solution(2):
There are 8 straight lines and 4 curves in the above picture.
3.
Solution(3):
There are 5 straight lines and 2 curves in the above picture.
4.
Solution(4):
There are 6 straight lines and 1 curve in the above picture.
5.
Solution(5):
There are 6 straight lines and 2 curves in the above picture.
6.
Solution(6):
There are 4 straight lines and 1 curve in the above picture.
7.
Solution(7):
The candle has 1 flat surface.
8.
Solution(8):
The box of tissues has 6 flat surfaces.
9.
Solution(9):
The box of ice cream has 6 flat surfaces.
10.
Solution(10):
The pot of flowers has 1 flat surface.
11.
Solution(11):
The container has 2 flat surfaces.
(12-15). For each object, count the number of flat surfaces and write the correct answer on the lines below.
12. 6
13. 5
14. 0
15. 5
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