Estimation
Estimate 31 x 68
What is 2,100?
30 x 70
Jacinta made 4 pints of soup. How many 2 cup servings of soup is this?
(1 pint = 2 cups)
What is 4 2 pint cups?
4 x 2 = 8 cups
8 ÷ 2 = 4 cups
1,452 shirts were delivered to a large department store. They came in boxes with 4 shirts in each box. How many boxes were delivered?
What is 363 boxes?
8 x 43
What is 344?
What is the name of my cat?
What is Bella?
What is the closest estimate for 18 x 26
Is it....
a) 400
b) 600
c) 1,000
What is a) 400?
20 x 25
11 feet is how many inches?
What is 122 inches?
12 inches = 1 foot
___ inches = 11 feet
12 x 11
Field Day is happening at Wilson School! There are 132 students in fourth and fifth grade. How many teams of 6 can their teachers make?
What is 22 teams?
132 ÷ 6
63 x 63
What is 3,969?
60 x 60 = 3,600
60 x 3 = 180
60 x 3 = 180
3 x 3 = 9
3,600 + 180 + 180 + 9 = 3,969
Is 9/12 <,>, or = 7/4
What is <?
Stella needs 26 quarts of orange juice for the end of year fourth grade party at Sienna's house. She brings a jug of 3 gallons of orange juice. How many more quarts does Stella need for the party?
What is 14 quarts?
3 gallons = ____ quarts
1 gallon = 4 quarts
3 gallons = 12 quarts
26 quarts - 12 quarts = 14 quarts
What is 4,218?
1.406 x 3
504 ÷ 6
What is 84?
(135,752 - 468) + (27,474 - 976)
What is 161,782?
135,752 - 468 = 135,284
27,474 - 976 = 26,498
26,498 + 135,284
What is the closest estimate to 32 x 54?
Is it...
a) 500
b) 1,000
c) 1,500
What is c) 1,500?
30 x 50
The mass of a melon is 2 kilograms. The mass of a plum is 75 grams. How much greater is the mass of a melon? MAKE YOUR ANSWER IN GRAMS
(1 kilogram = 1,000 grams)
What is 1,925 grams?
2 x 1,000 = 2,000
2,000 - 75
How many legs do 393 dogs have?
What is 1,572 legs?
Dogs have four legs each
393 x 4
5,346 ÷ 7
What is 763 R 5?
Barnes and Noble is opening a new store and they need to cover the floor with brand new tile. The floor is 86 meters wide and 76 meters long. They have 7,000 square meters of tile. Will they have enough tile? Why?
What is no, because when you multiply 86 x 76 you get 6,536 square meters of tile, which is less than 7,000 square meters and will not fill the store.
Estimate 360 x 214 USING THE NEAREST LANDMARK NUMBERS
What is 70,000?
350 x 200
Elsie read for 2 hours and 20 minutes this week. She read the same amount each day. How many minutes did she read each day?
(7 days = 1 week)
(60 minutes = 1 hour)
What is 20 minutes?
2 hours x 60 = 120 minutes
120 minutes + 20 minutes = 140 TOTAL MINUTES
140 minutes ÷ 7 days = 20 minutes per day
You have 5 decks of cards with 52 cards in each deck. How many cards will each person get if the five decks are dealt out evenly to 13 people?
What is 20 cards?
5 x 52 = 260 TOTAL CARDS
260 ÷ 13 = 20
4579 x 9
What is 41,211?
4,000 x 9 = 36,000
500 x 9 = 4,500
70 x 9 =560
9 x 9 = 81
What grade am I teaching next year?