Subtracting by counting up is a good way solve problems with larger numbers.
Example: 34 – 19 =
Think how much you should add to 19 to get 34.
Another technique is to takeaway.
Exercises.
Quiz Summary
0 of 6 Questions completed
Questions:
Information
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading…
You must sign in or sign up to start the quiz.
You must first complete the following:
Results
Results
0 of 6 Questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)
Categories
 Not categorized 0%
 Numbers 0%
 1
 2
 3
 4
 5
 6
 Current
 Review
 Answered
 Correct
 Incorrect

Question 1 of 6
1. Question
Jenny has 42 crayons. she found 16 broken. How many crayon were not broken? Solve the problem by counting up.

Working:
Equation to solve this problem is
(Add tens to get close, then ones)
16 + =
+ =
+ =
Therefore: + + =
Answer =
Correct 14 / 14 PointsIncorrect / 14 Points 

Question 2 of 6
2. Question
66 children walk to school and 19 takes the bus. How many more walk to school than take the bus? Solve the problem by counting up.

Working:
Equation to solve this problem is
(Add tens to get close, then ones)
19 + =
+ =
+ =
Therefore: + + =
Answer =
Correct 14 / 14 PointsIncorrect / 14 Points 

Question 3 of 6
3. Question
A small school has 85 students. If there are 39 girls, how many are boys?

Working:
Equation to solve this problem is
(Add tens to get close, then ones)
39 + 40 =
+ = 80
+ =
Therefore: 40 + + =
Answer =
Correct 11 / 11 PointsIncorrect / 11 Points 

Question 4 of 6
4. Question
A grocer has 73 eggs. 24 were sold. How many eggs does the grocer have?

Working:
Equation to solve this problem is
(Take tens from tens, then subtract ones)
70 – = 50
– 4 =
46 + =
Answer =
Correct 7 / 7 PointsIncorrect / 7 Points 

Question 5 of 6
5. Question
68 sandwiches were made for two events. 47 was delivered to the ParentsTeachers Meeting. How much is left for the book club.

Working:
Equation to solve this problem is
(Take tens from tens, then subtract ones)
60 – =
– =
+ =
Answer =
Correct 10 / 10 PointsIncorrect / 10 Points 

Question 6 of 6
6. Question
A bakery have 45 cookies in the shop. The Baker has an order of 95 cookies. How many must the baker prepare to meet the order?

Working:
Equation to solve this problem is
(Take tens from tens, then subtract ones)
90 – =
– =
+ =
Answer =
Correct 10 / 10 PointsIncorrect / 10 Points 