Mastering Digit Reversal: Problem-Solving in Math
Authored by Anthony Clark
English, Mathematics
8th Grade
CCSS covered
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A two-digit number is such that if you reverse its digits, the new number is 27 less than the original number. If the sum of the digits is 9, what is the original number?
54
81
63
72
Tags
CCSS.8.EE.C.8C
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The ages of two siblings differ by 6 years. If you reverse the digits of the older sibling's age, the result is 3 years less than the younger sibling's age. What are their ages?
Younger sibling: 22, Older sibling: 28
Younger sibling: 18, Older sibling: 24
Younger sibling: 20, Older sibling: 26
Younger sibling: 24, Older sibling: 30
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A two-digit number has digits that are reversed to form a new number. The new number is 18 more than the original number. If the sum of the digits is 11, what is the original number?
37
54
82
46
Tags
CCSS.8.EE.C.8C
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A two-digit number is 4 times the sum of its digits. If you reverse the digits, the new number is 36 less than the original number. What is the original number?
48
36
24
72
Tags
CCSS.8.EE.C.7B
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The sum of a two-digit number and the number formed by reversing its digits is 99. If the tens digit is 3 more than the units digit, what is the original number?
63
72
54
36
Tags
CCSS.8.EE.C.8C
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A two-digit number is 5 times the sum of its digits. When the digits are reversed, the new number is 27 less than the original number. What is the original number?
45
72
54
36
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The difference between a two-digit number and the number formed by reversing its digits is 27. If the sum of the digits is 10, what is the original number?
73
64
52
81
Tags
CCSS.8.EE.C.8C
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