Here is the list of online maths exercises on numbers. Each corrected exercise is accompanied by hints, course reminders and methodological advice to help you practise independently.
Exercise example :
Use yellow numbers and blue arithmetic operators to calculate the target number.
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Compare the following numbers: 751 ... 956.
1111 relative numbers and plane reference system | Numbers 6th Grade | 7th GradeExercise example :
What is the missing sign in the expression: 15 ... 5=3.
1112 relative numbers and plane reference system | Numbers 6th Grade | 7th GradeExercise example :
What is the result of 10% of 80.
1113 proportionality | Numbers 6th Grade | 7th GradeExercise example :
What is the result of the following product: 836.912 * 0.001 ?
1114 integers and decimals | Numbers 6th GradeExercise example :
What is the result of the following operation 473+295 ?
1115 integers and decimals | Numbers 6th GradeExercise example :
Compute the quotient and remainder of the Euclidean division of 621 by 45.
1116 integers and decimals | Numbers 6th Grade euclidean_divisionExercise example :
Give the rounding to 2 decimal places of : 11.445631.
1117 integers and decimals | Numbers 6th Grade roundExercise example :
Point A is on the x-axis, its x-coordinate is 7. Place it correctly.
1118 integers and decimals | Numbers 6th GradeExercise example :
Express 0.97 as a percentage.
1124 proportionality | Numbers 6th Grade | 7th Grade percentageExercise example :
Express 24/25 as a percentage.
1125 proportionality | Numbers 6th Grade | 7th Grade percentageExercise example :
What is the result of `87*34+7027`.
1211 operations on integers and decimals | Numbers 7th Grade calculatorExercise example :
What is the result of `14+1040/80`.
1212 operations on integers and decimals | Numbers 7th Grade fractionExercise example :
What is the result of `3768/(91+66)`.
1213 operations on integers and decimals | Numbers 7th Grade fractionExercise example :
What is the result of `96/(32/4)`.
1214 operations on integers and decimals | Numbers 7th Grade fractionExercise example :
What is the result of 5 plus 4 plus 2.
1215 operations on integers and decimals | Numbers 7th GradeExercise example :
What is the result of the following fraction product: `(24/2)*(14/3)`.
1217 operations on integers and decimals | Numbers 7th Grade fractionExercise example :
Compare the following fractions `6/4`...`5/4`.
1219 fractions | Numbers 7th Grade compare_fractionsExercise example :
What is the result of `(6-4)+(9+6)+(3-10)`.
1223 operations on integers and decimals | Numbers 7th Grade calculatorExercise example :
What is the missing number in the following expression `27/?`=3.
1225 operations on integers and decimals | Numbers 7th GradeExercise example :
Is the following equality 4+x-5 = 2 true for x = 2?
1226 operations on integers and decimals | Numbers 7th GradeExercise example :
What is the result of `8+(-10)`?
1236 operations on integers and decimals | Numbers 7th Grade evaluateExercise example :
What is the missing number in the following expression: `2+...=-4`.
1237 operations on integers and decimals | Numbers | introduction to equation solving | equations 7th GradeExercise example :
What is the result of `10+6+4-6-7-5`.
1238 operations on integers and decimals | Numbers 7th Grade evaluateExercise example :
In a magic square, the sum of the numbers in each row, in each column and on each diagonal is the same.
Complete the following magic square:
Exercise example :
Expand the following expression `-10*(-12)`.
1311 decimal writing and operations on relative numbers | Numbers 8th Grade evaluateExercise example :
Put in the form `a*1/b` the following fraction `19/6`
1312 decimal writing and operations on relative numbers | Numbers | fractions 8th GradeExercise example :
Give a value approximating to 0.1 of the following fraction `19/6`.
1313 decimal writing and operations on relative numbers | Numbers 8th GradeExercise example :
Give a value approximated to `10^-1` of `sqrt(91)`.
1324 decimal writing and operations on relative numbers | Numbers 8th Grade sqrtExercise example :
Compare the following two expressions `90/10` ... `27/10`.
1328 comparisons of numbers, fractions, expressions | fractions | Numbers | algebraic calculus 8th Grade compare_fractionsExercise example :
Give a frame to the nearest `10^-1` of the following fraction `25/4`.
1329 comparisons of numbers, fractions, expressions | fractions | Numbers 8th GradeExercise example :
I have a number, I add 27 to it, I subtract 22 from the result and I get 43, what is this number?
1330 algebraic calculus | literal computation | Numbers 8th Grade equation_solverExercise example :
We suppose that `3*x-2<5`. Choose the expression that is true from the list below.
1335 comparisons of numbers, fractions, expressions | Numbers 8th Grade inequality_solverExercise example :
Calculate the gcd of 225 and 84.
1427 integers and rational numbers | Numbers 9th Grade gcdExercise example :
Are the following numbers 205 and 318 prime to each other ?
1428 integers and rational numbers | Numbers 9th Grade gcdExercise example :
Let f be the application of R in R defined by f(x)=`2*(3*x+1)^2-6*(2*x+3)^2` :
Compute f(2).
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Calculate the absolute value of `C=8+9`.
1511 order, absolute value, inequations | functions | Numbers 10th Grade absExercise example :
Calculate the absolute value of `F=2/3-3/7`.
1512 order, absolute value, inequations | functions | Numbers 10th Grade absExercise example :
Indicate by which number the "question mark" must be replaced in the prime decomposition of 60 so that the following equality is verified.
60 = 3*5*?*?
Exercise example :
Give the decomposition of 854 into a product of prime numbers by ordering the factors and using the power operator ^ if necessary.
1516 order, absolute value, inequations | Numbers 10th Grade prime_factorizationExercise example :
51 is an integer, is it prime ?
1517 order, absolute value, inequations | Numbers 10th Grade prime_factorizationExercise example :
Give the product decomposition of the following expression 30*16 by ordering the factors and using the power operator ^ if necessary.
1518 order, absolute value, inequations | Numbers 10th Grade prime_factorizationExercise example :
Write in the form of an irreducible fraction the following fraction `(40*28)/(35*24)` using the decomposition into prime factors.
1520 fractions | Numbers | integers and rational numbers 10th Grade fractionExercise example :
Put into irreducible fraction form: `((-9)/(20))/((-36)/(-15))`.
1539 fractions | Numbers 10th Grade fractionExercise example :
Put into irreducible fraction form: `((-9)/(20))/((-36)/(-15))`.
1541 fractions | Numbers 10th Grade fractionExercise example :
Rounding to the nearest whole number 71.710931
11171 integers and decimals | Numbers 6th Grade roundExercise example :
Rounding to one digit after the decimal point 72.597345.
11172 integers and decimals | Numbers 6th Grade roundExercise example :
What are the coordinates of the following point ?
11211 relative numbers and plane reference system | Numbers 6th Grade | 7th GradeExercise example :
The point A has coordinates (7;0). Place it correctly.
11212 relative numbers and plane reference system | Numbers 6th Grade | 7th GradeExercise example :
Write in the form `sqrt(a)/b`, the following expression `1/sqrt(360)`, where a and b represent two integers.
14110 square roots | fractions | Numbers 9th Grade simplify_surdThe Numbers topic is available for : 6th Grade, 7th Grade, 8th Grade, 9th Grade, 10th Grade
List of exercises by class : middle and high schools, 6th Grade, 7th Grade, 8th Grade, 9th Grade, 10th Grade, 11th Grade, 12th Grade.