5 step-by-step problems on addition and subtraction of natural numbers on the number line for you to practice. Don’t miss them!
You can read the content and see solved examples in this post: 📄 Addition and subtraction of natural numbers on the number line.
Problem 1
Juan has $1,250 saved and his brother gives him $350. How much money does Juan have in total?
Explanation: Juan’s brother gives him money, so the amount must be added, and in order not to make a line with many numbers, it can be done from \(50\) to \(50\). The first amount is located \((1250)\) and it is advanced \(7\) times, which corresponds to a total of \(350\) to obtain the result.
Procedure:
Answer:
The total amount of money that Juan has is \($1,600\)
Problem 2
22 players were invited to a football match and a total of 27 players attended. How many players attended without an invitation?
Explanation: Since more players attended than those invited, you must subtract to find out how many showed up without being invited. You can make a number line from \(1\) to \(1\), locate the total number of players \((27)\) and go back \(22\) times (invited players) to get the result.
Procedure:
Answer:
Five players attended without invitation.
Problem 3
Hernando harvested 90 heads of lettuce and his partner Nancy harvested 150 heads of lettuce. How many heads of lettuce did they harvest in total?
Explanation: The total number of lettuces between Hernando and Nancy must be calculated, so the quantities must be added. To do this, a number line is made from \(30\) to \(30\), locating \(90\) (the number of lettuces for Hernando) and moving forward \(5\) times to add Nancy’s \(150\), obtaining the answer.
Procedure:
Answer:
Between Hernando and Nancy they harvested a total of \(240\) lettuces.
Problem 4
Franco has bought 320 apples for a walk with his community, but his mother has given 100 to his church for an activity. How many apples did Franco have left?
Explanation: Since the mother removed apples, that amount must be subtracted from the total. To do this, you can make a number line from \(20\) to \(20\), locate yourself at \(320\) and go back \(5\) times, which corresponds to the \(100\) apples removed.
Procedure:
Answer:
Franco had 220 apples left for the walk with his community.
Problem 5
Aylín is 6 years old, 7 years younger than her cousin Antonella. How old is Antonella?
Explanation: Aylín’s \(6\) years must be added to Antonella’s \(7\) years to calculate her age. Since the numbers are small, a number line is made from \(1\) to \(1\).
Procedure:
Answer:
Antonella is \(13\) years old.
Here we end the 5 solved problems of addition and subtraction of natural numbers on the number line. To see more content on the topic, I invite you to see the 🔗 available resources.
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