Number Ninja Arena
What is the value of the digit 4 in 7 241 293?
40 000
What comes next: 1 510, 1 530, 1 550, 1 570, ___.
1 590
4 325 + 1 214 = ?
5 539
712 x 8 = ?
5 696
648 ÷ 3 = ?
216
Write six million, three hundred and twenty thousand, fifteen in numerals.
6 320 015
Round 124 276 to the nearest hundred.
124 300
6 315
Find the product of 7 693 and 4
30 772
936 ÷ 4 = ?
234
Compare using >, <, or =:
8 305 412 ___ 8 350 214
< (less than)
A charity donates school supplies every month. In January, it donated 5 000 supplies. Each month after that, it donated 500 fewer supplies than the previous month. The donations were: 5 000, 4 500, 4 000, 3 500, ___. How many supplies will be donated in the next month?
3 000 supplies
A library had 8 450 books. It bought 2 375 more books. How many books are there now?
10 825 books
Find the product of 659 and 38
25 042
Find the quotient of 864 and 5.
172 R 4
Write 8 145 293 in words.
eight million, one hundred and forty-five thousand, two hundred and ninety-three
Round 3 856 721 to the nearest million.
A stadium can hold 30 000 people. During an event, 24 685 people attended. How many seats were empty?
5 315 seats
A factory packs 325 boxes each day for 16 days. How many boxes are packed altogether?
5 200 boxes
A baker made 972 cupcakes and packed them equally into 9 boxes. How many cupcakes are in each box?
108 cupcakes
Arrange in descending order:
6 504 321
6 450 321
6 540 321
6 405 321
6 540 321
6 504 321
6 450 321
6 405 321
A bacteria colony doubles in size every hour. The number of bacteria follows the pattern: 6, 12, 24, 48, 96, ___, ____. How many bacteria will there be in the next two hours?
192 bacteria, 384 bacteria
A concert venue sold 18 750 tickets for a weekend music festival. On the day of the event, 2 485 more tickets were sold at the gate. However, 1 320 people requested refunds and did not attend. How many people attended the music festival?
19 915 people
A farm harvested 478 baskets of mangoes each week for 24 weeks. How many baskets were harvested in all?
11 472 baskets
A charity collected 3 888 cans of food and shared them equally among 8 community centers. How many cans did each center receive?