Here are the solutions for the subtraction problems, solved step-by-step.
Row 1:
1.
71 - 39: You cannot subtract 9 from 1, so you borrow from the tens place. The 7 becomes a 6, and the 1 becomes 11. $11 - 9 = 2$. Then, $6 - 3 = 3$. The answer is
32.
2.
61 - 46: Borrow from the tens. The 6 becomes 5, and the 1 becomes 11. $11 - 6 = 5$. Then, $5 - 4 = 1$. The answer is
15.
3.
31 - 18: Borrow from the tens. The 3 becomes 2, and the 1 becomes 11. $11 - 8 = 3$. Then, $2 - 1 = 1$. The answer is
13.
Row 2:
4.
51 - 23: Borrow from the tens. The 5 becomes 4, and the 1 becomes 11. $11 - 3 = 8$. Then, $4 - 2 = 2$. The answer is
28.
5.
91 - 64: Borrow from the tens. The 9 becomes 8, and the 1 becomes 11. $11 - 4 = 7$. Then, $8 - 6 = 2$. The answer is
27.
6.
81 - 32: Borrow from the tens. The 8 becomes 7, and the 1 becomes 11. $11 - 2 = 9$. Then, $7 - 3 = 4$. The answer is
49.
Row 3:
7.
41 - 25: Borrow from the tens. The 4 becomes 3, and the 1 becomes 11. $11 - 5 = 6$. Then, $3 - 2 = 1$. The answer is
16.
8.
81 - 49: Borrow from the tens. The 8 becomes 7, and the 1 becomes 11. $11 - 9 = 2$. Then, $7 - 4 = 3$. The answer is
32.
9.
91 - 47: Borrow from the tens. The 9 becomes 8, and the 1 becomes 11. $11 - 7 = 4$. Then, $8 - 4 = 4$. The answer is
44.
Final Answer:
The answers for the problems from left to right, top to bottom are:
32, 15, 13
28, 27, 49
16, 32, 44
Parent Tip: Review the logic above to help your child master the concept of math worksheet subtraction with regrouping.
