Fourth Grade Challenging Math -------------------------------------------------------------------------
4-71)
(56
÷
7) x 7 - 8 + (9864 - 9864) x 5 + 4

4-72) The
sum of Jack and Jill's age is 48 years. Jack is twice Jill's
age. How old are they?

4-73) What is the square of 11, 12, 13,
14, 15, and 16?

4-74) Fill in the blanks with a number to
make the equation work
a)
46 x ____ = 138
b)
35 x ____ = 210
c)
12 x ____ = 108

4-75) 44 people need to cross a
river. They have large boats that can take 6 people each, and small boats that
can take 4 people each. Find a arrangement so that there are no empty seats on
the boats. How many different arrangements can you find?

4-76)
Smart multiplication
(A) 565 x 9
(B) 482 x 9

4-77) How many hours and minutes are there between 5:15 am and 10:23
pm in the same day?

4-78)
What is the least positive number divisible by 3, 4, 5, and 6?

4-79)
What is the least positive number divisible by 2, 5, and 7?

4-80) How many multiples of 13 are
between1 and 100?

More math problems for fourth grade:
1-5
6-10
11-15
16-20
21-25
26-30
31-35
36 -40
41-45 46-50
51-60
61-70
71-80
81-90
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