Standard Algorithm Addition/Subtraction
Standard algorithm: 273 + 185
458
A. 14 centuries
B. 14 centimeters
C. 14 meters
D. 14 kilometers
C. 14 meters
Headphones were invented in 1910. Wireless earbuds were invented 105 years later. When were wireless earbuds invented?
2015
Write this number in Expanded Form and Word Form:
6,704,325
6,000,000 + 700,000 + 4,000 + 300 + 20 + 5
Six million, seven hundred four thousand, three hundred twenty five.
948 - 526 =
422
Thomas drank 7 liters of Coke before school (YIKES!) How many milliliters of Coke did he drink?
7,000 milliliters
Mr. Drake woke up at 5:50 a.m. on his marathon race day. He got ready in 35 minutes and drove 15 minutes to the event. Did he make it to the race for the 6:45 a.m. start time? What time did he get to the race?
Yes, he made it to the race at 6:40 a.m.
Jonah was watching the Olympics and wanted to know the attendance to each Olympic games (besides COVID years).
2024 Paris Summer Olympics: 9,548,392
2018 PyeongChang Winter Olympics: 1,384,291
2016 Rio De Janeiro Summer Olympics: 6,389,176
2014 Sochi Winter Olympics: 1,249,385
What was the most watch Winter AND Summer Olympics?
Summer Olympics: Paris
4,678 + 3,875 =
8,553
Sammie says her stuffed animal collection weighs more than Sarina's stuffed animal collection. Sammie's collection weighs 18 1/4 kg and Sarina's stuffed animal collection weight 18,750 grams. Is Sammie correct? Why or why not?
No, Sammie is not right because 1kg = 1,000 grams and 1/4 of a kilogram = 250 grams. So, Sammie has 18,250 grams which is less than Sarina's 18,750 grams.
During the 2024 Summer Olympics, 12,786 people attended the beach volleyball competition. During the 2016 Summer Olympics 9,238 people attended the beach volleyball competition. During the 2012 Summer Olympics 10,625 people attended the beach volleyball competition.
How many more people attended the 2024 and 2016 volleyball competitions combined than the 2012 volleyball competitions?
11,399 more people
12,786 + 9,238 = 22,024
22,024 - 10,625 = 11,399
Round 15,783
to the nearest thousand:
to the nearest hundred:
to the nearest ten:
Nearest Thousand: 16,000
Nearest Hundred: 15,800
Nearest ten: 15,780
9,423 - 5,879 =
3,544
Dudley has a goal to run 25 km this week. He ran 9 km on Monday, 12 km on Tuesday, 1,000 meters on Wednesday. How many more kilometers does he need to run to reach his goal?
3 km left to reach his goal
9 km + 12 km = 21 km
1,000 m = 1 km
21 km + 1 km = 22 km
25 km - 22 km = 3 km left
Ryan bought 3 pounds of bananas to take to a race. Ryan weighed the bananas he had left after the race and they weighed 16 ounces. 1/4 of the weight of a banana is the peel. What is the weight of the actual bananas eaten at the race in ounces?
24 ounces of bananas were eaten
1) 3 x 16 = 48 oz total of bananas
2) 48 - 16 = 32 oz eaten
3) 32/4 = 8 oz of banana peel
4) 32 - 8 = 24 oz of actual banana's eaten
Solve using any strategy you would like: 6,475 - 3,387
3,088
18,200 - 9,579 =
8,621
During the Olympics, a city installed a temporary walking path for spectators that measured 12,500 meters long. On the first day, spectators walked 4,875 meters in the morning and 3,690 meters in the afternoon. On the second day, spectators walked 2,940 meters.
How many meters of the walking path have NOT been walked yet?
995 meters left.
1) 4,875 + 3,690 = 8,565
2) 8,565 + 2,940 = 11,505
3) 12,500 - 11,505 = 995
People signed up for the 10k. Race organizers have to feed 80 runners. Each runner gets 4 ounces of grapes. How many ounces will they need to buy for 80 runners? How many pounds?
320 ounces
(80 x 4 = 320)
20 pounds
320/16 = 20
Chef Mikey bulk orders 100 packs of milk cartons for school lunch. Each carton of milk holds 270 milliliters of milk.
If 4th grade drank 35 cartons of milk in one day, how many milliliters of milk did 4th grade drink?
9,450 milliliters of milk