Numerical Expressions Review

 $25\div\left(3+2\right)=$  
What is the first step in solving this problem?

• Ask Google

• Divide 25 by 3

• Add 3 and 2

• Multiply 5

 $25\div\left(3+2\right)=$  Solve

• 10

• 5

• 77

• 20

Find the correct numerical expression for:
10 times the quotient of 6 and 3

•  $10^2\div6+3$  
  

•  $6\times3\div10$  

•  $10\times\left(6\div3\right)$  

• 10, 6, 3

 $735\times39=$  
Solve

• 28,665

• 26,568

• 25,856

• 28,656

Melfin the elf is busy in Santa's workshop! Today he is building dollhouses and has only one box of nails left. Each box contains 550 nails. One dollhouse needs 21 nails. How many dollhouses can he build before he's out of nails?

• 25

• 27

• 30

• 26

 $100-\left\{7\times\left(5-2\right)\right\}$  
Evaluate the expression

• 79

• 448

• 63

• 75

 $7+9-4\times3$  
Place parentheses in the expression so that it has a given value of 22

•  $7+9-\left(4\times3\right)$  

•  $\left(7+9\right)-4\times3$  

• No parentheses needed.  The expression already has a given value of 22.

•  $7+\left(9-4\right)\times3$  

 $5+3-8\div4-2$  

Place the parentheses in the expression so that it has a given value of 4.

•  $\left(5+3\right)-8\div4-2$  

•  $5+3-8\div\left(4-2\right)$  

•  $5+\left(3-8\right)\div4-2$  

•  $5+3-\left(8\div4\right)-2$  

Sprinkles the elf added 14 the product of 224 and 16. What is the sum?

• 3,478

• 3,598

• 3,808

• 3,854

Buddy the elf says that the number 2 is prime because it only has 2 factors. Holly the elf says that 2 is composite because it is even and that all even numbers are composite. Who is right?

• Buddy is correct.

• Holly is correct.

• Neither are correct.

• Buddy says that Holly is a cotton-headed ninnymuggins.