Maria had \(45\) stickers. She gave \(12\) to her friend and then bought \(20\) more. How many stickers does Maria have now?
Step 1 (Subtract): \(45 - 12 = 33\).
Step 2 (Add): \(33 + 20 = 53\).
Maria has \(53\) stickers.
There are \(150\) people on a train. At the first stop, \(35\) people get off. At the second stop, \(52\) people get on. How many people are on the train now?
Step 1 (Subtract): \(150 - 35 = 115\).
Step 2 (Add): \(115 + 52 = 167\).
There are \(167\) people on the train.
A library has \(248\) mystery books. It receives a donation of \(112\) new mystery books. Then, \(85\) mystery books are checked out. How many mystery books are in the library?
Leo started with \(\$80\). He spent \(\$25\) on a game and \(\$15\) on snacks. How much money does he have left?
Step 1 (Add): Find the total spent: \(\$25 + \$15 = \$40\).
Step 2 (Subtract): \(\$80 - \$40 = \$40\).
Leo has \(\$40\) left.
A fish tank holds \(200\) gallons of water. It had \(120\) gallons in it. The owner added \(50\) more gallons, but then discovered a leak that lost \(15\) gallons. How many gallons are in the tank?
Step 1 (Add): \(120 + 50 = 170\) gallons.
Step 2 (Subtract): \(170 - 15 = 155\) gallons.
The tank has \(155\) gallons.
On Monday, a farmer picked \(320\) apples. On Tuesday, he picked \(50\) fewer apples than on Monday. How many apples did he pick in total on both days?
Step 1 (Subtract): Find Tuesday's count: \(320 - 50 = 270\).
Step 2 (Add): Find the total: \(320 + 270 = 590\).
He picked \(590\) apples in total.
A school had a fundraiser and aimed to raise \(\$1,000\). They raised \(\$450\) from a bake sale and \(\$375\) from a car wash. How much more money do they need to reach their goal?
Step 1 (Add): Find money raised: \(\$450 + \$375 = \$825\).
Step 2 (Subtract): Find how much is needed: \(\$1,000 - \$825 = \$175\).
They need \(\$175\) more.
Jamal is reading a book with \(400\) pages. He read \(110\) pages last week and \(130\) pages this week. How many pages does he have left to read?
Step 1 (Add): Find total pages read: \(110 + 130 = 240\).
Step 2 (Subtract): Find pages left: \(400 - 240 = 160\).
He has \(160\) pages left.
