MENU
❌
Home
Math Forum/Help
Problem Solver
Practice
Worksheets
Tests
Algebra
Geometry
College Math
History
Games
MAIN MENU
1 Grade
Adding and subtracting up to 10
Comparing numbers up to 10
Adding and subtracting up to 20
Addition and Subtraction within 20
2 Grade
Adding and Subtracting up to 100
Addition and Subtraction within 20
3 Grade
Addition and Subtraction within 1000
Multiplication up to 5
Multiplication Table
Rounding
Dividing
Perimeter
Addition, Multiplication, Division
4 Grade
Adding and Subtracting
Addition, Multiplication, Division
Equivalent Fractions
Divisibility by 2, 3, 4, 5, 9
Area of Squares and Rectangles
Fractions
Equivalent Fractions
Least Common Multiple
Adding and Subtracting
Fraction Multiplication and Division
Operations
Mixed Numbers
Decimals
Expressions
6 Grade
Percents
Signed Numbers
The Coordinate Plane
Equations
Expressions
Polynomials
Polynomial Vocabulary
Symplifying Expressions
Polynomial Expressions
Factoring
7 Grade
Angles
Inequalities
Linear Functions
8 Grade
Congurence of Triangles
Linear Functions
Systems of equations
Slope
Parametric Linear Equations
Word Problems
Exponents
Roots
Quadratic Equations
Quadratic Inequalities
Rational Inequalities
Vieta's Formulas
Progressions
Arithmetic Progressions
Geometric Progression
Progressions
Number Sequences
Reciprocal Equations
Logarithms
Logarithmic Expressions
Logarithmic Equations
Logarithmic Equations
Logarithmic Inequalities
Irrational Equations
Irrational Inequalities
Trigonometry
Trigonometry
Identities
Trigonometry
Trigonometric Equations
Trigonometric Inequalities
Extremal value problems
Numbers Classification
Geometry
Intercept Theorem
Slope
Law of Sines
Law of Cosines
Vectors
Modulus Inequalities
Exponential Inequalities
Exponential Equations
Modulus equations
Probabilities
Functions
Min, Max Values
Limits
Limits of Functions
Monotonicity of Functions
Properties of Triangles
Pythagorean Theorem
Matrices
Complex Numbers
Inverse Trigonometric Functions
Analytic Geometry
Analytic Geometry
Circle
Parabola
Ellipse
Conic sections
Polar coordinates
Derivatives
Derivatives
Applications of Derivatives
Derivatives
Integrals
Integrals
Integration by Parts
Trigonometric Substitutions
Application
Differential Equations
Home
Practice
Problems Involving Adding and Subtracting within 1000
Easy
Normal
Difficult
Problems Involving Adding and Subtracting within 1000: Problems with Solutions
By
Catalin David
Problems involving adding and subtracting numbers up to 1000 for third grade.
Problem 1
Add:
400 + 300 =
Solution:
400 + 300 = 700
Problem 2
800 - 600 =
Solution:
800 - 600 = 200
Problem 3
120 + 230 =
Solution:
120 + 230 = 350
Problem 4
470 - 130 =
Solution:
470 - 130 = 340
Problem 5
620 - 410 =
Solution:
620 - 410 = 210
Problem 6
354 + 235 =
Solution:
354 + 235 = 589
Problem 7
746 - 521 =
Solution:
746 - 521 = 225
Problem 8
423 + 256 - 554 =
Solution:
423 + 256 - 554 = ( 423 + 256) - 554 = 679 - 554 = 125
Problem 9
964 - 513 - 251 =
Solution:
964 - 513 - 251 = ( 964 - 513) - 251 = 451 - 251 = 200
Problem 10 sent by Simona
Mike had \$480. He bought a table for \$138 and two chairs for \$160. Mike left with \$
.
Solution:
480 - (138 + 160)= 480 - 298 = 182
Problem 11 sent by Sevdjanka
Find the perimeter of a rectangle if its sides are 200cm and 40 cm.
Solution:
200 + 40 + 200 + 40 = 240 + 240 = 480cm
Problem 12
(683 - 571) + (829 - 315) =
Solution:
(683 - 571) + (829 - 315) = 112 + 514 = 626
Problem 13
274 + [459 - (324 + 123)] =
Solution:
274 + [459 - (324 + 123)] = 274 + (459 - 447) = 274 + 12 = 286
Problem 14
Compare
759 - 325 - 113
<
>
=
759 - (325 + 113)
Solution:
759 - 325 - 113 = 434 - 113 = 321
759 - (325 + 113) =759 - 438 = 321
Then they're equal.
Problem 15
Compare
347 - 125 + 232 - 121
>
<
=
(347 + 232) - (125 + 121)
Solution:
347 -125 + 232 - 121 = 222 + 111 = 333
347 +232) - ( 125 + 121) = 579 - 246 = 333
Then they're equal
We notice that we can add the numbers with plus between them, then the numbers with minus between them, and then we can do subtraction.
Problem 16
At a shop, 579 kg of oranges were sold in two days. If in the first day 265 kg were sold, how many were sold in the second day?
Solution:
From the quantity sold in the two days we subtract the quantity sold in the first day.
579 - 265 = 314
Problem 17
There are 143 cars on the first floor of a parking building, 132 cars on the second floor and 120 cars on the third floor. How many cars are there in the whole building?
Solution:
143 + 132 + 120 = 275 + 120 = 395
Problem 18
Tim has 678 dollars. One day, he spends 132 dollars and the next day, he spends 135 dollars. How many dollars are left after the two days?
Solution:
678 -(132 + 135) = 678 - 267 = 411 dollars
Problem 19
What number is 104 more than 385?
Solution:
385 + 104 = 489
Problem 20
What number is 435 less than 769?
Solution:
769 - 435 = 334
Problem 21
A book has 359 pages. If Tim has read 233 pages, how many pages are left?
Solution:
359 - 233 = 126
Problem 22
A tablet costs 458 dollars. If Matt needs 142 more dollars to buy it, how many dollars does he have?
Solution:
458 - 142 = $316
Problem 23
In a school, there are 472 boys and 517 girls. How many children are there in the school?
Solution:
472 + 517 = 989
Easy
Normal
Difficult
Submit a problem on this page.
Problem text:
Solution:
Answer:
Your name(if you would like to be published):
E-mail(you will be notified when the problem is published)
Notes
: use [tex][/tex] (as in the forum if you would like to use latex).
Correct:
Wrong:
Unsolved problems:
Feedback
Contact email:
Follow us on
Twitter
Facebook
Copyright © 2005 - 2024.