Question 5 of 36beginner💡 UnderstandShort Answer4 marks
In each of the following, write the subtraction and addition sentences that follow from the given sentence.
(a)
If 78 + 164 = 242, then, ___.
Answer
242 - 164 = 78 and 242 - 78 = 164.
(b)
If 462 + 839 = 1301, then, ___.
Answer
1301 - 839 = 462 and 1301 - 462 = 839.
(c)
If 921 - 137 = 784, then, ___.
Answer
784 + 137 = 921 and 921 - 784 = 137.
(d)
If 824 - 234 = 590, then, ___.
Answer
590 + 234 = 824 and 824 - 590 = 234.
Explanation
(a) From addition sentence 78 + 164 = 242, we get two subtraction sentences. (b) From addition sentence 462 + 839 = 1301, we derive the subtraction sentences. (c) From subtraction sentence 921 - 137 = 784, we derive the related sentences. (d) From subtraction sentence 824 - 234 = 590, we derive the related sentences.