Vocab
A way of doing math in my head.
A. Mental Math
B. Math
C. Thinking Math
What is Mental Math?
54 + 43 =
A. 97
B. 11
C. 107
What is 97?
4 + 5 = 9
5 + 4 = 9
I am what property of addition?
A. Commutative
B. Identity
C. Associative
What is Commutative?
1 more than 37
38
Round 24 to the nearest 10.
What is 20?
A number close to its actual value.
A. Zero
B. Unknown
C. Estimate
What is estimate?
323 + 144 =
A. 1,020
B. 443
C. 467
What is 467?
3 + 0 = 3
0 + 3 = 3
I am what property?
A. Identity
B. Commutative
C. Associative
What is Identify Property?
10 more than 843
853
Which numbers tell us to BUMP IT UP when rounding?
What are 5, 6, 7, 8, and 9?
When an answer makes sense it is...
A. good
B. reasonable
C. right
What is reasonable?
111 + 109 =
A. 220
B. 120
C. 320
What is 220?
I am an example of the Associative Property.
A. (3+7) + 1 = 7 + (1+3)
B. 6 + 1 + 2 + 3 = 12
C. 99+1=100
What is A. (3+7) + 1 = 7 + (1+3)
10 more than 333
343
A horse weighs 1,729 pounds. A smaller horse weighs 902 pounds. How much do they weigh together?
2,631 pounds
A set of numbers that follow a certain order.
A. Order
B. Parenthesis
C. Pattern
What is a pattern?
67 + 99 =
A. 165
B. 196
C. 166
What is 166?
These show you how to group operations.
A. Equal signs
B. Parenthesis
C. Plus Sign
What is Parenthesis?
100 more than 572
672
An apple tree has 336 apples on it. Another tree has the same number of apples. How many would the 2 apple trees have?
672 apples
The missing number of the problem you are solving.
A. Unknown
B. Known
C. Misser
What is unknown?
1,209 + 642 =
A. 1,212
B. 1,818
C. 1,851
What is 1,851?
Write an example of the Identify Property in the chat.
Answers will vary.
1,000 more than 625
1,625
Sammy walked one mile before lunch and one mile after lunch. The length of a mile is 1,760 yards. He walked the same distance the next day. In yards, what is the total distance Sammy walked?
What is 7,040 yards?