Addition
20+10
30
30-20
10
1x3
3
Joe buys 3 oranges. He eats 1. How many oranges does Joe have left?
Joe has 2 oranges left.
1/2+2/2
3/2
1 1/2
35+26
61
156-27
129
9x12
108
Bob swims in the pool for 2 hours. He takes a break for 1 hour, and then swims again for another 3 hours. How many hours did he swim?
He swam for 5 hours.
3/4 x 5/5
15/20
3/4
0.75
123+56
179
398-199
199
24x15
360
Diego is solving a math test. He gets 79%. Then, for extra credit, he gets 5% more, but loses 3% on the extra credit for typos. What grade did he get?
He got 81%.
0.25 x 6
1.5
598+234
832
3,967-978
2989
784x29
22736
Mary has 30 pieces of candy. Her friend has 3 times as much candy, but then her friend eats 3 pieces of candy. How much more candy does Mary's friend have compared to her, after she ate the candy?
Mary's friend has 57 more pieces of candy than her.
3+3x3-5+7
14
1,967+23,549
25516
350-457
-107
1263x398
502674
On the day of Christmas, Grace got $50 from her parents. She also got $12 from her brother, $20 from her sister, and $192 from her grandparents. However, she has to give back 1/2 of the money she received to charity. How much money did she give to charity?
She gave $137 to charity.
Find the value of x.
12-x=3y+4
x=-3y+8