Estimate
Use Rounding and Estimating to solve
159 + 32 = _____
160 + 30 = 190
159 + 32 = 191
5 x 3 =
15
Write a number sentence and array showing 4 rows of 7
4 x 7 = 28
61 add 5
66
Andrew is having his friends over for game night. So, he decided to prepare snacks and games.
He started by making mini sandwiches. If he has 4 friends coming over and he made 3 sandwiches for each one of them, how many sandwiches did he make?
4 x 3 = 12
Use Rounding and Estimating to solve
53 - 18 =
50 - 20 = 30
53 - 18 = 35
11 x 7 =
77
Write a number sentence and array showing 8 rows of 2
8 x 2 = 16
185 take away 18
167
Mona is having a party at her house to celebrate her birthday. She invited some friends and family.
Mona prepared rainbow-colored cupcakes for dessert. If she made one box of cupcakes for each of the 7 colors of the rainbow and each box has 6 cupcakes, how many cupcakes did Mona prepare in total?
7 x 6 = 42
Use Rounding and Estimating to solve
82 + 52 =
80 + 50 = 130
82 + 52 = 134
7 x 2 =
14
Write a number sentence and array showing 5 rows of 3
5 x 3 = 15
117 add 184
301
John is building a tree house to serve as his hideout.
The first thing he did is to gather some materials. For the pillars, he needs two sets of wood with different lengths. If the first set of wood is 4 feet long and the second set is 5 times longer than the first set, how long is the second set of wood?
4 x 5 = 20
Use Rounding and Estimating to solve
629 - 73 =
630 - 70 = 560
629 - 73 = 556
9 x 5 =
45
Write a number sentence and array showing 2 rows of 7
2 x 7 = 14
691 take away 139
552
The kids from Oakwood Elementary School are visiting a bird zoo for their field trip.
To get to the bird zoo from the school, the kids have to ride some buses. If there are 7 buses and each bus has 3 adult supervisors to guide the children, how many supervisors are there in total?
7 x 3 = 21
Use Rounding and Estimating to solve
261 + 26 =
260 + 30 = 290
261 + 26 - 287
8 x 3 =
24
Write a number sentence and array showing 3 rows of 3
3 x 3 = 9
673 take away 197
476
Michelle likes to save money so that she can buy things that she wants in the future.
One day, she decided to count her savings. She opened her piggy bank and sorted out the different coins and dollar bills. If she counted a total of 20 nickels (a nickel is equivalent to 5 cents), what is the total value of money (in cents) does she have in nickels?
20 x 5 = 100