Answer:
1. 745 - 155= 900
2. 650 - 250= 450
3. 5 × 60= 450
division is the opposite of multiplication so we use division
450 ÷ 5= 60
so meaning 5×60=450
4. 1120 ÷ 20= 56
multiplication is the opposite of division like I said earlier.
so we will use multiplication
1. N + 155 = 990
N = 990 - 155
N = 835
2. 650 - N = 450
650 - 450 = N
200 = N
3. N x 5 = 300
5N = 300
5N/5 = 300/5
N = 60
4. N/20 = 56
N = 56 (20)
N = 1120
5. N - 1500 = 3098
N = 3098 + 1500
N = 4598
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Answers & Comments
Answer:
1. 745 - 155= 900
2. 650 - 250= 450
3. 5 × 60= 450
division is the opposite of multiplication so we use division
450 ÷ 5= 60
so meaning 5×60=450
4. 1120 ÷ 20= 56
multiplication is the opposite of division like I said earlier.
so we will use multiplication
Answer:
1. N + 155 = 990
N = 990 - 155
N = 835
2. 650 - N = 450
650 - 450 = N
200 = N
3. N x 5 = 300
5N = 300
5N/5 = 300/5
N = 60
4. N/20 = 56
N = 56 (20)
N = 1120
5. N - 1500 = 3098
N = 3098 + 1500
N = 4598