For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..
For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.
Leave your answers in the simplest form or correct to two decimal places.
1)
How many more squares must I shade to get a figure with 32 cm²
Answer:_______________
2)
How many more squares must I shade to get a figure with 30 cm²
Answer:_______________
3)
How many more squares must I shade to get a figure with 40 cm²
Answer:_______________
4)
How many more squares must I shade to get a figure with 20 cm²
Answer:_______________
5)
How many more squares must I shade to get a figure with 18 cm²
Answer:_______________
6)
How many more squares must I shade to get a figure with 23 cm²
Answer:_______________
7)
How many more squares must I shade to get a figure with 21 cm²
Answer:_______________
8)
How many more squares must I shade to get a figure with 24 cm²
Answer:_______________
9)
How many more squares must I shade to get a figure with 17 cm²
Answer:_______________
10)
How many more squares must I shade to get a figure with 16 cm²
Answer:_______________
1)
How many more squares must I shade to get a figure with 32 cm²
Answer: 23
SOLUTION 1 :
Step 1: Total area of the figure : 8 cm2 + 1 cm2 = 9 cm2 Step 2: How many more squares left : 32 cm2 - 9 cm2 = 23
I must shade 23 more squares.
2)
How many more squares must I shade to get a figure with 30 cm²
Answer: 21
SOLUTION 1 :
Step 1: Total area of the figure : 8 cm2 + 1 cm2 = 9 cm2 Step 2: How many more squares left : 30 cm2 - 9 cm2 = 21
I must shade 21 more squares.
3)
How many more squares must I shade to get a figure with 40 cm²
Answer: 31
SOLUTION 1 :
Step 1: Total area of the figure : 8 cm2 + 1 cm2 = 9 cm2 Step 2: How many more squares left : 40 cm2 - 9 cm2 = 31
I must shade 31 more squares.
4)
How many more squares must I shade to get a figure with 20 cm²
Answer: 11
SOLUTION 1 :
Step 1: Total area of the figure : 8 cm2 + 1 cm2 = 9 cm2 Step 2: How many more squares left : 20 cm2 - 9 cm2 = 11
I must shade 11 more squares.
5)
How many more squares must I shade to get a figure with 18 cm²
Answer: 9
SOLUTION 1 :
Step 1: Total area of the figure : 8 cm2 + 1 cm2 = 9 cm2 Step 2: How many more squares left : 18 cm2 - 9 cm2 = 9
I must shade 9 more squares.
6)
How many more squares must I shade to get a figure with 23 cm²
Answer: 14
SOLUTION 1 :
Step 1: Total area of the figure : 8 cm2 + 1 cm2 = 9 cm2 Step 2: How many more squares left : 23 cm2 - 9 cm2 = 14
I must shade 14 more squares.
7)
How many more squares must I shade to get a figure with 21 cm²
Answer: 12
SOLUTION 1 :
Step 1: Total area of the figure : 8 cm2 + 1 cm2 = 9 cm2 Step 2: How many more squares left : 21 cm2 - 9 cm2 = 12
I must shade 12 more squares.
8)
How many more squares must I shade to get a figure with 24 cm²
Answer: 15
SOLUTION 1 :
Step 1: Total area of the figure : 8 cm2 + 1 cm2 = 9 cm2 Step 2: How many more squares left : 24 cm2 - 9 cm2 = 15
I must shade 15 more squares.
9)
How many more squares must I shade to get a figure with 17 cm²
Answer: 8
SOLUTION 1 :
Step 1: Total area of the figure : 8 cm2 + 1 cm2 = 9 cm2 Step 2: How many more squares left : 17 cm2 - 9 cm2 = 8
I must shade 8 more squares.
10)
How many more squares must I shade to get a figure with 16 cm²
Answer: 7
SOLUTION 1 :
Step 1: Total area of the figure : 8 cm2 + 1 cm2 = 9 cm2 Step 2: How many more squares left : 16 cm2 - 9 cm2 = 7
