Go through the Math in Focus Grade 1 Workbook Answer Key Chapter 17 Practice 3 Subtraction Without Regrouping to finish your assignments.
Math in Focus Grade 1 Chapter 17 Practice 3 Answer Key Subtraction Without Regrouping
Count back to subtract.
Example
Question 1.
95 – 3 = ____________
Answer:
95 – 3 = 92
Explanation:
By subtracting smaller number from bigger number, we get the difference.
95 – 3 = 92
Count back to subtract or 3 numbers.
92 , 93 , 94 , 95 are the numbers
Question 2.
88 – 5 = _____________
Answer:
88 – 5 = 83
Explanation:
By subtracting smaller number from bigger number, we get the difference.
88 – 5 = 83
Count back to subtract or 5 numbers.
83, 84, 85, 86, 87, 88 are the numbers.
Question 3.
79 – 6 = _____________
Answer:
79 – 6 = 73
Explanation:
By subtracting smaller number from bigger number, we get the difference.
79 – 6 = 73
Count back to subtract or 6 numbers.
73, 74, 75, 76, 77, 78, 79 are the numbers.
Subtract.
Question 4.
Answer: 45
Explanation:
Subtracting without regrouping can be done mentally, or in your head,
because the numbers can be easily deducted since the top number is always larger than the bottom number.
So, 58 – 3 = 55
Question 5.
Answer: 65
Explanation:
Subtracting without regrouping can be done mentally, or in your head,
because the numbers can be easily deducted since the top number is always larger than the bottom number.
So, 69 – 4 = 65
Question 6.
Answer: 71
Explanation:
Subtracting without regrouping can be done mentally, or in your head,
because the numbers can be easily deducted since the top number is always larger than the bottom number.
So, 74 – 3 = 71
Question 7.
Answer: 62
Explanation:
Subtracting without regrouping can be done mentally, or in your head,
because the numbers can be easily deducted since the top number is always larger than the bottom number.
So, 67 – 5 = 62
Question 8.
Answer: 93
Explanation:
Subtracting without regrouping can be done mentally, or in your head,
because the numbers can be easily deducted since the top number is always larger than the bottom number.
So, 96 – 3 = 93
Question 9.
Answer: 81
Explanation:
Subtracting without regrouping can be done mentally, or in your head,
because the numbers can be easily deducted since the top number is always larger than the bottom number.
So, 88 – 7 = 81
Fill in the missing numbers.
Question 10.
79 – 6 = ___________
Answer: 73
Explanation:
You need to place the subtrahend below the minuend so that the ones-place numbers fall in the same column.
Now you have to subtract each column separately and in order, starting with the ones-place column.
Then place the answer of the subtractions below each one of the columns.
So, 79 – 6 = 73
Question 11.
99 – 5 = _____________
Answer: 94
Explanation:
You need to place the subtrahend below the minuend so that the ones-place numbers fall in the same column.
Now you have to subtract each column separately and in order, starting with the ones-place column.
Then place the answer of the subtractions below each one of the columns.
So, 99 – 5 = 94
Subtract.
Question 12.
Answer: 75
Explanation:
You need to place the subtrahend below the minuend so that the ones-place numbers fall in the same column.
Now you have to subtract each column separately and in order, starting with the ones-place column, tens and so on…
The last step is to place the answer of the subtractions below each one of the columns, always put it in order.
So, 95 – 20 = 75
Question 13.
Answer: 19
Explanation:
You need to place the subtrahend below the minuend so that the ones-place numbers fall in the same column.
Now you have to subtract each column separately and in order, starting with the ones-place column, tens and so on…
The last step is to place the answer of the subtractions below each one of the columns, always put it in order.
So, 49 – 30 = 19
Question 14.
Answer: 50
Explanation:
You need to place the subtrahend below the minuend so that the ones-place numbers fall in the same column.
Now you have to subtract each column separately and in order, starting with the ones-place column, tens and so on…
The last step is to place the answer of the subtractions below each one of the columns, always put it in order.
So, 70 – 20 = 50
Question 15.
Answer: 20
Explanation:
You need to place the subtrahend below the minuend so that the ones-place numbers fall in the same column.
Now you have to subtract each column separately and in order, starting with the ones-place column, tens and so on…
The last step is to place the answer of the subtractions below each one of the columns, always put it in order.
So, 40 – 20 = 20
Question 16.
Answer: 36
Explanation:
You need to place the subtrahend below the minuend so that the ones-place numbers fall in the same column.
Now you have to subtract each column separately and in order, starting with the ones-place column, tens and so on…
The last step is to place the answer of the subtractions below each one of the columns, always put it in order.
So, 68 – 32 = 36
Question 17.
Answer: 43
Explanation:
You need to place the subtrahend below the minuend so that the ones-place numbers fall in the same column.
Now you have to subtract each column separately and in order, starting with the ones-place column, tens and so on…
The last step is to place the answer of the subtractions below each one of the columns, always put it in order.
So, 97 – 54 = 43
Fill in the missing numbers.
Question 18.
56 – 23 = _________
Answer: 33
Explanation:
Place the subtrahend below the minuend so that the ones-place numbers fall in the same column.
Now subtract each column separately and in order, starting with the ones-place column, tens and so on…
Then place the answer of the subtractions below each one of the columns, always put it in order.
So, 56 – 23 = 33
Question 19.
86 – 42 = ___________
Answer: 44
Explanation:
Place the subtrahend below the minuend so that the ones-place numbers fall in the same column.
Now subtract each column separately and in order, starting with the ones-place column, tens and so on…
Then place the answer of the subtractions below each one of the columns, always put it in order.
So, 86 – 42 = 44
Match
Question 20.
Answer:
Explanation:
Place the subtrahend below the minuend so that the ones-place numbers fall in the same column.
Now subtract each column separately and in order, starting with the ones-place column, tens and so on…
Then place the answer of the subtractions below each one of the columns, always put it in order.
83 – 10 = 73
77 – 21 = 56
90 – 10 = 80
84 – 32 = 52
94 – 34 = 60
68 – 20 = 48