llas 10
Practice Set 27
1984m
19+42
1. Rewrite the following using a letter.
(1) The sum of a certain number and 3.
(2) The difference obtained by subtracting 11 from another number.
(3) The product of 15 and another number.
(4) Four times a number is 24.
2. Find out which operation must be done on both sides of these equati
า 20.
Answer:
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