Jessie and Matt solved the problem below. Someone made the mistake. Who made the mistake and what was it?
Jessie, because she added first. She was supposed to multiply first.
What is the value of 9 in 912,418?
900,000
Find the product of 346 and 8.
2,768
What's another way to write 14 x 103? Select all that apply.
a.) 14 x 10 x 10
b.) 14 x 10 x 10 x 10
c.) 2 x 7 x 10 x 10 x 10
d.) 1 x 4 x 10 x 10 x 10
Both, B and C.
seven more than five
5 + 7 or 7 + 5
Solve the expression
5 + 17 – 25 ÷ 5
17
How much greater is 3,000 than 30?
100x
Mr. Nicolas ordered 12 computers for the 5th grade class. Each computer cost $513. How much did it cost for all the computers?
$6,156
7 x 10x = 7,000
What is x?
3
Add 10 and the product of 3 and 5
10 + (3 x 5)
30 – [(9 x 2) – (5 + 3)]
20
Which expression equals 120,000?
a.) 12 x 101
b.) 12 x 102
c.) 12 x 103
d.) 12 x 104
d.) 12 x 104
What are the partial products of 4,123 x 23?
12,369 and 82,460.
The product is 94,829.
Which statement is equivalent to multiplying a number by 103?
A. adding 10 three times
B. adding 3 ten times
C. multiplying by 10, three times
D. multiplying by 3, ten times
C. multiplying by 10, three times
The difference of 9 minus 5, divided by five
(9 - 5) ÷ 5
The answer is 1.
What is 1/10 of 3000?
a.) 30
b.) 300
c.) 3,000
d.) 30,000
b.) 300
Solve for 1,932 x 43.
83,076
When multiplying a whole number by 104, how many 0's are added to the end?
i.e. 21 x 104
Four Zeroes
Add the product of 4 and 8 and the product of 5 and 6
(4 x 8) + (5 x 6)
[(17 – 9) ÷ (2 x 2)] x 5
10
The value of the 3 in 317,125 is ____ compared to value of the 3 in 143,415.
A. 10 times
B. 1/10 of
C. 100 times
D. 1/100 of
Hint... write the value of each first
C. 100 times
Mercy multiplied 3,124 by 73. She made a mistake when multiplying.
Step 1. Multiplied 3,124 by 7 = 21,868
Step 2. Multiplied 3,124 by 3 = 9,372
Step 3. Add 21,868 + 9,372
Step 4. No error in Mercy's steps.
Step 2. Multiplied 3,124 by 3 = 9,372
She was suppose to multiply 3,124 by 30 = 93,720
Which equation is true? Select all that apply
A. 31 x 102 = 310
B. 406 x 103 = 406,000
C. 30 x102 = 3,000
D. 217 x 102 = 25,700
Both B and C
Jackie has 34 marbles and Natalie has 123 marbles. Sarah has three times the amount of marbles as Jackie and Natalie combined. Write the numerical expression that shows the number of marbles that Sarah has.
4 x (34 + 123) or (34 + 123) x 4