Numbers - math word problems - page 58 of 312

Number of problems found: 6224

Same digits
Write numbers from 0 to 100 with the same number of units and tens.
Double-digit numbers
How many double-digit numbers range from 0 to 100?
Book cost
Four books cost m crowns. How many 5, 6, 7, 8 such books cost?
Expression - decimals
Specify the value of the expression with decimal numbers: (4.416356) -7.152+ (74.855) =?
Matrix determinant
Calculate the value of the determinant of a unit matrix with 11 rows.
Matrix rank
Find the rank of each null matrix.
Inverse matrix
Find how many times the larger determinant is the matrix A, which equals 9 as the determinant of its inverse matrix.
Fraction to decimal
Write the fraction 3/22 as a decimal.
Matrix determinant
The inverse matrix determinant to matrix C has a value of 0.125. Determine how often the determinant of the matrix C is larger than the determinant of the inverse matrix to the matrix C.
Matrix determinant
The determinant of matrix A has the value 2. What will be the value of the inverse matrix determinant to matrix A?
Metric fractions
Express the fraction and decimal number of which part of the meter is: 120mm, 25cm, 7dm, 670mm, 48cm, 9.7dm.
Write decimals
Write in the decimal system the short and advanced form of these numbers: a) four thousand seventy-nine b) five hundred and one thousand six hundred and ten c) nine million twenty-six
In fractions
An ant climbs 2/5 of the pole in the first hour and climbs 1/4 of the pole in the next hour. What part of the pole does the ant climb in two hours?
Tank filling
We should fill the water tank with a volume of 100 hl to 2/3 of the volume. How long does the filling take if 2.5 l of water per second flows through the hose?
Stamp exchange
Jano and Petr exchange stamps. Jano gave Peter 32 stamps with rockets for 8 stamps with turtles. How was Jano after this exchange? Did he have more or fewer marks than at the beginning? Explain your answer.
Expression calculations
Calculate: a) 23 - [2.6 + (6 - 9) - 4.52] b] 12.25 + 2 [2.7 - (-0.5 + 0.3 * 0.6)]
Percentages
What is 1/3 of $821.43?
1/10 of meter
How many centimeters is one-tenth of 1 meter?
Unit conversion
How to calculate 2/5 m = x dm?
Is complex
Are these numbers 2i, 4i, 2i + 1, 8i, 2i + 3, 4 + 7i, 8i, 8i + 4, 5i, 6i, 3i complex?

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