Difficult

Adding and Subtracting up to 100: Very Difficult Problems with Solutions

Problem 1 sent by yunsal
(40 + 51) - (41 + 32) =
Problem 2
28 + 18 - (33 - 18) =
Problem 3
John has $32. Mary has $13 less than John. Ivo has $9 more than them both. How much money does Ivo have?
Problem 4
One gentleman loved animals. He had three dogs and five times more cats. His parrots were 3 more than his dogs and cats. How many animals did the gentleman have?
Difficult
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