Natural numbers - 4th grade - math problems
Number of problems found: 25
- Three numbers
How much we increases the sum of three numbers when the first enlarge by 14, second by 15 and third by 16? Choose any three two-digit numbers and prove results.
Calculate how many years has man lived for 12248 days?
Fill in the examples correctly brackets: A) 7.9+12:3-2 =23 B) 7.9+12:3-2=75
38 weeks is equal to how many days?
123456789 = 100 Use only three plus or minus characters to correct previous identity/equation.
- Written number
Place+values x ten thousands =30 thousands
- Page numbering
The book has 88 pages. How many times is the number 4 used for the book numbering?
Tina supports her favorite charity with an automatic deduction of P350/month from her bank account. What is the total of her deductions in a year?
- In the bowl
There are 12 pears in the bowl. Erik ate a third. How many pears remained in the bowl?
I have 19 balls and my friend has 27. About how many has my friend more balls?
There were 24 pimps in the plate. Maros ate 12, his little sister four times less. How many pimps remained in the plate?
Grandma bought two 10 pack of eggs. She used 8 eggs on the cake, 2 times less on the omelette and 4 more eggs for breakfast. How many eggs did it stand for?
- Children in the classroom
How many children are in the classroom, where Ladislav is 10th lightest and 16th heaviest in class?
- Unknown number 22
I am a two-digit number. My tens digits are 4. My one digit is three more than my tens. Who am I?
In the workshop have to be produced for 5 days 2000 components. How many components must be produced in the workshop every day and how much per hour, if shift is 8 hours.
They used 200 pieces to make wafers. 157 topped with caramel topping and 100 with sugar topping. How many wafers did both toppings have?
- Mystery number
A mystery number is between 800 and 920. No digits are the same. The difference of the numbers 5. What is the mystery number?
After the check of textbooks found that every 10-th textbook should be withdrawn. Together 58 textbooks were withdrawn. How many textbooks were in stock before withdrawn, and how many after withdrawn?
Landlord had 49 ducats more than Jurošík. How many ducats Jurošík steal landlord if the Jurošík now 5 ducats more?
- Small painters
There are ten pupils in the painting group. Eight pupils paint with watercolors and nine pupils with tempera colors. How many pupils paint both water and tempera colors when each pupil paints?
Natural numbers - math problems. Examples for 4th grade.