Multiplication by Memory
10 x 0 = ?
0
6 x 7 = ?
42
"Altogether"
Addition
Jim bought 10 chocolate bars. His mom gave him 5 more chocolate bars for Valentine's day. How many chocolate bars does Jim have altogether?
15 chocolate bars
There are 86 students at a game.
27 more students come in.
Then 34 students leave.
How many students are left at the game?
79 students are left
6 x 1 = ?
6
11 x 6 = ?
66
"How many are left?"
Subtraction
There are 135 students at the assembly. 42 students leave early. How many students are left in the gym?
93 students left
There are 6 boxes of snacks.
Each box has 10 snacks.
Students eat 30 snacks.
How many snacks are left?
30 snacks left
2 x 2 = ?
4
8 x 8 = ?
64
"each"
There are 8 rows of chairs. Each row has 12 chairs.
How many chairs are there in total?
96 chairs
A student earns $15 per hour.
They work 4 hours on Monday and 3 hours on Tuesday.
How much money do they earn in total?
$105
11 x 2 = ?
22
12 x 11 = ?
132
"Difference"
Subtraction
A student earns $18 per hour. They work 9 hours this week. How much money do they earn in total?
$162
There are 5 rows of chairs.
Each row has 25 chairs.
Then 18 more chairs are added.
How many chairs are there in all?
143 chairs
250 x 1 = ?
250
9 x 9 = ?
81
"per hour"
Camila had a package of 100 new stickers. She gave away 40 of them to her friends. How many stickers remain?
60 stickers
A school prints 24 flyers for each class.
There are 12 classes.
Then 85 flyers are thrown away.
How many flyers are left?
203 flyers