What is the digit that shows how many groups of 10 are in a number?
tens digit
Use mental math. What two numbers equal the same thing as 20+23?
10 + 40
10 + 21
33 + 10
33 + 10
53 + 18 = 61
False
It is 71
Annie has 52 stickers in her collection. She gets 22 more from her grandma. How many stickers does she have now?
74
When you add numbers, the answer is called the _______________.
sum
What is the digit that shows how many ones are in a number?
ones digit
What equation does this number line show?
70 + 30 = 100
42 + 26 = 67
False
It is 68
Bobby has 27 stuffed animals. His bid brother gives him 19 more. How many does he have now?
46 stuffed animals
When you subtract numbers, the answer is called the _______________.
difference
A _________ is a tool that can help you add or subtract. It can begin at any number.
open number line
What equation does this number line show?
50 + 40 = 90
35 + 47 = 82
True
Amber finds 64 seashells on the beach on Monday. On Tuesday, she finds 28 more. How many seashells did she find on both days?
92 seashells
An __________ has equal rows and equal columns.
array
You can __________ a number into its place value parts.
break apart
What is 49 + 25?
74
63 + 29 = 92
True
Tanya made 47 cookies for her class bake sale. Her mom made 55 cupcakes. How many desserts did they make in all?
102
A number that can be broken up into two equal parts is called a _________ number. Hint: These numbers are made up of doubles facts:
1+1 3+3 5+5
2+2 4+4 6+6
even
What is math you do in your head called?
mental math
Use the following numbers.
75 60 50 70
What order will they go in to make the picture true?
50 60 70 75
56 + 39 = 93
False
It is 95
Lilah has 12 pencils at her desk. Greg has 9 pencils. Rob has 21 and Elle has 4. How many pencils does this group of students have in all?
46 pencils
Numbers that can not be broken into two equal parts are called ________ numbers. Hint: These numbers are made up of near doubles facts.
1+2 3+4 5+6
2+3 4+5 6+7
odd