Powers of Ten
what is 105
100,000
3,895
what is the value of the 8
800
write an expression to match the words
ethan collected 16 seashells. He lost 4 of them while walking home.
16-4
What is the order of operations?
P E M D A S
45x22
990
8
745,832
What place value is the 8 in?
hundreds
Darryl has a board that is 8 feet long. He cuts it into pieces that are each 2 feet long.
write an expression for that sentence.
8 /2
Can you go left to right on problems that only have addition and subtraction? Or problems that only have multiplication and division?
yes
26 x 34
884
What is 9 x 104
90,000
What is the word form for 1,789
one thousand 7 hundred and eighty nine
evaluate.
24 x5 -41
79
8 + 36 / 9
12
78 x 40
3120
The moon is about 240,000 from the Earth. What is the distance written as a whole number multiplied by a power of ten?
24 x 104
4,000 is _ times as much as 4
1,000
evaluate
16 / (2 +6)
2
10 + ( 25-10) / 5
13
650 x 12
7800
The sun is about 93 x 106 miles from the Earth. What is the distance written as a whole number?
93,000,000 miles
Write this number in expanded form.
263, 417
2 hundred thousands, 6 ten thousands, 3 thousands, 4 hundreds, 1 tens, 7 ones
$243
25 - 22 x 3
13
75 x 85
6375