Multiplying by Tens
16 x 60=
960
Estimate:
73 x 67 =
4,900
18 x 34 =
612
During the 2010 Great Bird Count, 42 eagles were counted in each of 20 locations throughout Alaska. In 2009, there were 32 eagles counted in each of 26 locations in Alaska. Based on this data, how many more eagles were counted in 2010 than 2009?
8
Write 23,785 in expanded form.
20,000 + 3,000 + 700 + 80 + 5
80 x 22=
1,760
Estimate:
85 x 71 =
6,300
22 x 26 =
572
The 24 students in Ms. Lee's class each collected 18 cans for recycling. The 21 students in Mr. Gray's class each collected 25 cans. How many more cans were collected by Mr. Gray's class?
93 cans
What is the difference between 4 5/9 and 2 7/9?
1 7/9
31 x 50 =
1,550
Estimate:
37 x $44 =
$ 1,600
15 x 33 =
495
At East School, each of the 45 classrooms have 22 students. At West School each of the 42 classrooms have 23 students. How many more students are at East School?
24 students
Draw a capital letter of the alphabet that has exactly one line of symmetry
A, B, C, D, E, K, M, T, U, V, W, Y
Kenny bought 20 packs of baseball cards. There are 12 cards in a pack. How many cards did Kenny buy?
240 cards
A dime has a diameter of about 18 millimeters. About how many millimeters long would a row of 34 dimes be?
600 millimeters
19 x 36 =
684
A zoo gift shop orders 18 boxes of key rings. There are 75 key rings in a box. They also order 15 boxes of magnets. There are 80 magnets in a box. How many more key rings are there?
150 key rings
Draw two line segments that are perpendicular.
Answers will vary.
For the school play, 40 rows of chairs are set up. There are 22 chairs in each row. How many chairs are there in all?
880 chairs
Marisa burns 93 calories every time she plays fetch with her dog. She plays with her dog once a day. About how many calories would she burn in 28 days?
2,700
Each student in Miss Sike's kindergarten class has a box of crayons. Each box has 36 crayons. If there are 18 students in Miss Sike's class, how many crayons are there in all?
648 crayons
Ellen hiked 16 miles each day on a 12-day hiking trip. Lola hiked 14 miles each day on her 16-day hiking trip. How many more miles did Lola hike?
32 miles
Draw and label an obtuse triangle.
Answers will vary.