Download presentation

Presentation is loading. Please wait.

Published byKaylee Meyer Modified over 5 years ago

2
Arithmetic Puzzles Created by Inna Shapiro ©2008

3
Problem 1 Please, replace the # and & symbols with digits # # + # & 1 9 7

4
Answer 9 9 + 9 8 1 9 7

5
Problem 2 Please, replace the # and & symbols with digits 1 # # # - & & & 1

6
Answer 1 0 0 0 - 9 9 9 1

7
Problem 3 Please, replace each letter with a digit: aa + bcb = deed, Note that each of those numbers is its own mirror image (left to right is same as right to left).

8
Answer We must find digits, so that the sum looks like aa + bcb = deed. Obviously d=1 and b=9 => aa + 9c9 = 1ee1, that means that a=2, 22 + 9c9 = 1ee1 => e=0 and c=7 22 + 979 = 1001

9
Problem 4 Please, replace letters with digits B D C E + B D A E A E C B E

10
Answer 5 2 4 0 + 5 2 1 0 1 0 4 5 0

11
Problem 5 Please, replace letters with digits a 5 2 b - b 2 5 a 8 c d c

12
Answer 9 5 2 1 - 1 2 5 9 8 2 6 2

13
Problem 6 How can you replace # and & symbols? 1.#### + 1 = 1&&&& 2.1&&&&&& - 1 = ######

14
Answers 1.9999 + 1 = 10000 2.1000000 – 1 = 999999

15
Problem 7 Can you change letters a and b to digits? b a a a a + a a a a a a a a b a a a a

16
Answer 2 9 9 9 9 + 9 9 9 9 9 9 9 9 2 9 9 9 9

17
Problem 8 Please, replace letters with digits to get the correct answer 7abcdef : 5 = abcdef7

18
Answer 714285 : 5 = 142857

19
Problem 9 Max wrote two-digit number. Then he inserted 0 between the two digits. The result is nine times greater than original number. What was the original number?

20
Answer The original number is 45, when Max added 0 he got 405, 45 * 9 = 405

21
Problem 10 Please add arithmetic signs and parenthesis to get correct answers: 5 5 5 5 = 3 5 5 5 5 = 4 5 5 5 5 = 5 5 5 5 5 = 6 5 5 5 5 = 7

22
Answer (5 + 5 + 5) : 5 = 3 (5 * 5 – 5) : 5 = 4 (5 – 5) * 5 + 5 = 5 (5 * 5 + 5) : 5 = 6 (5 + 5) : 5 + 5 = 7

Similar presentations

OK

Integers Lesson 1a: Integers Integers are whole numbers and their opposites. Negative integers are numbers less than zero. Positive integers are numbers.

Integers Lesson 1a: Integers Integers are whole numbers and their opposites. Negative integers are numbers less than zero. Positive integers are numbers.

© 2019 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google