Exponents
How would you write a cubed and squared as an exponent?
93
82
Why do we use parenthesis in math?
Which step of a problem do we solve the parenthesis?
- Separate numbers
- Group numbers together
We solve for them first!!!
What symbol do we use for estimation?
What does that symbol mean?
Why do we use estimation?
Approximation
WHY:
- It makes numbers easier to work with
- Makes life easier!
Jessica has 116 pairs of sneakers. Mary has 215 pairs of sneakers. How many more pairs of sneakers does Mary have than Jessica?
Mary has 99 more pairs of sneakers than Jessica.
What day is Pi Day?
March 14th
Identify the base and exponent in the number below. Then, write it in expanded form.
74
Base: 7
Exponent: 4
Expanded Form: 7 x 7 x 7 x 7
What are the two different ways (symbols) to write parenthesis?
( )
[ ]
Solve using estimation:
16 x 91
1,800
What is model drawing?
- Representing word problems in the form of bars.
- A diagram used to help in solving word problems.
I am an odd number. Take away one letter and I become even.
Seven- Take away the 's' it becomes even.
93 + 82 =
793
Solve the problem below:
(6-3)2x (2 x 2) =
36
Solve using estimation: 312 x 37
12,400
There are 628 boxes of oatmeal at the grocery store. The grocery store got another shipment of oatmeal. Now, there are 908 boxes of oatmeal. How many boxes of oatmeal was in the shipment?
280 Boxes of oatmeal were in the shipment.
Using only addition, how do you add eight 8's and get the number 1,000?
888+ 88+ 8 + 8 + 8= 1000
Solve:
(52 x 4) x (10 x 4) =
4,000
Solve:
[ ( 5 + 30) ÷ 5 + 2] ÷ 3 =
3
Solve the word problem below using estimation:
Ms. Sall went trick or treating at 351 houses and got 29 pieces of candy at each house. How many pieces of candy did Ms. Sall get on Halloween?
350 x 30 = 10,500
In a box of Fruit Loops there are 350 pieces. Half are purple. There are 50 more purple than red. The rest are blue.
How many blue and purple Fruit Loops are in the box?
Purple- 175
Red- 125
Blue- 50
Answer: 225
41 years ago, when Sally was 13 and her mother was 39.
Solve:
(1,000 ÷102) + (73x 5) =
1,725
Solve:
20 ÷ 2 x [ 9-3 x (5-4) ]2 =
360
The flight to Italy is 4,283 miles. Ms. Fox has been to Italy 19 times. How many miles has Ms. Fox traveled to Italy in her entire life?
4,280 x 20 = 85,600
Last year, Ms. Sall went to a form of water 278 times. She went to the beach 56 times. She went to the pool 92 more times than the beach. The rest of the time she went to the lake.
How many times did Ms. Sall go to the lake and pool?
Beach: 56 + 92 = 148
Lake: 74
148 + 74 = 222
222
What is the smallest number that can be exactly divided by all the numbers 1-10?
2,250