Practice the problems of Math in Focus Grade 1 Workbook Answer Key Chapter 14 Practice 2 Mental Subtraction to score better marks in the exam.
Math in Focus Grade 1 Chapter 14 Practice 2 Answer Key Mental Subtraction
Subtract mentally. Think of addition.
Question 1.
8 – 5 = ______
Answer: 3
Question 2.
9 – 6 = ______
Answer: 3
Question 3.
11 – 3 = ______
Answer: 8
Question 4.
13 – 7 = ______
Answer: 6
Question 5.
15 – 6 = ______
Answer: 9
Question 6.
12 – 8 = ______
Answer: 4
Subtract mentally. First subtract the tens. Then add the tens to the ones.
Example
Question 7.
28 – 4 = ___
Answer:
Question 8.
29 – 5 = ______
Answer:
Question 9.
27 – 6 = ______
Answer:
Question 10.
37 – 2 = ______
Answer:
Question 11.
38 – 8 = ______
Answer:
Question 12.
36 – 6 = ______
Answer:
Subtract mentally.
First subtract the tens.
Then add the tens to the ones.
Example
Question 13.
22 – 10 = _______
Answer:
Question 14.
23 – 20 = _______
Answer:
Question 15.
35 – 30 = ________
Answer:
Question 16.
36 – 20 = ________
Answer:
Solve mentally. Fill in the blanks.
Question 17.
How many fish are left? ______
Answer:
Given,
There are 16 fish and 9 of them swim away,
By subtracting 9 from 16 we get 7,
Therefore, there are 7 fish left
Question 18.
How many more apples than pears are there? ______
Answer:
Given,
There are 29 apples and 10 pears in the basket,
By subtracting 10 from 29 we get 19,
Therefore, there are 19 more apples than pears.