Math 1A Singapore-Comparing Length-Chapter 8.1

comparing length, who is longest, who is shortest, math 1a sg, Singapore math comparing length, which worm takes the longest path,

Comparing Length


Know comparing Length:

Look at the picture and give answers as per questions.


 

Who is the longest?

Who is the shortest?

Answer:

Mr. Snake is the longest.

Mr. Ant is the shortest.


 

Who is the tallest?

Who is the shortest?

Answer:

Miss Giraffe is the tallest.

Mr. Monkey is the shortest.


1. Which is the longest string? Which is the shortest string?

.........

........
..........

[Note: 1st string has 10 balls, 2nd string has 9 balls and 3rd string has 11 balls.]

Answer:

3rd string is the longest.

2nd string is the shortest.


2. Which is the tallest block? Which is the shortest block?


 

[Note: 1st block has 4 bricks, 2nd block has 6 bricks, 3rd block has 7 bricks, 4th block has 8 bricks.]

Answer:

4th block is the tallest.

1st block is the shortest.


3.  Which worm takes the longest path? Which worm takes the shortest path?


 

[Note: Worm A takes 9 small square sides, Worm B takes 8 small square sides, Worm C takes 10 small square sides.]

Answer:

Worm C takes the longest path.

Worm B takes the shortest path.


4. Which tape is the longest? Which tape is the shortest?


 

[Note: Tape P takes 6 small distances, tape Q takes 5 small distances and tape R takes 6 small distances but R takes an angular way.]

Answer:

Tape R is the longest.

Tape Q is the shortest.


Workbook Exercise 57(1)

Fill in the blanks.

 
 
 
 
 
C
 
D
 
 
 
 
 
 
 
 
 
 
 
B
 
 
 
 
A
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

(a) Tape ____ is the longest.

(b) Tape ____ is the shortest.

(c) Tape D is as long as Tape _____.

(d) Tape A is shorter than Tape _____.

Solution:

(a) Tape C is the longest.

(b) Tape B is the shortest.

(c) Tape D is as long as Tape A.

(d) Tape A is shorter than Tape C.

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