Number Sense
Which number is greater: 456 or 465. Write the correct symbol. <, >, or =
456 < 465
Say: That 456 is less than 465.
The number 465 is greater
** DAILY DOUBLE ** Worth 200
What is
234 + 123 =
357
What is 450 - 100=
350
**DAILY DOUBLE* Worth 200
What is 50 + 50 + 50 =
150
What is the Associative Property? Define it and give an example
The ways the numbers are grouped, doesn't change the answer. They "associate"
Example:
(5 + 2) +3 = 10 is the same as (3 + 2) +5 = 10
Put these numbers in order from smallest to largest: 325, 532, 235, 632
235, 325, 532, 632
Solve: 645+132 =
777
** DAILY DOUBLE** Worth 400
Solve 586 - 243 =
343
What is 456 + 101 =
557
What is the Cummutative Property? Give and example?
Numbers can be added in any order and will still get the same answer. "They Commute"
Example:
25 + 40 = 65
40 + 25 = 65
Are these numbers in order from least to greatest, OR greatest to least?
557, 335, 111, 37
Greatest to least
Solve 368 + 247. Show where you will need to regroup.
615
Solve 624-278 =
Show where you regroup
346
What is 84 - 23 =
Quick mental math
61
20 + 16 = ? +20
? = _______
Solve for ?
16
**DAILY DOUBLE** Worth 800
1. Complete the missing number in the blank that makes sense. 100, 81, 77, ___, 22
These numbers are ordered from ______ to ______.
(greatest to least, or least to greatest)
Any number between 22 and 77
These numbers are ordered from greatest to least
Solve: 268 + 242 =
510
Solve: 796 - 589 =
Show where you have to regroup
207
Solve 254 + 436 =
690
Does this equation show the Associative Property?
20 + (10+15) = (20 + 10) +10
YES OR NO
Why?
NO
Because 15 is not in the second part of the equation.
Compare these numbers and write the correct symbol to represent which number is bigger.
4076 < , >, = 4076
4076 = 4076
522
Solve 805 - 699 =
You have to double borrow
106
Start with 67
Subtract 39
Subtract 23
What is your number?
5
** DAILY DOUBLE** worth 1000
(10 + 14)+ 11 = 10 + (14 + 11)
____ + 11 = 10 + ____
_____ = _____
Solve the missing numbers
**DAILY DOUBLE** worth 1000
(10 + 14)+ 11 = 10 + (14 + 11)
__24__ + 11 = 10 + __25__
__35___ = ___35__