Which numerical expression shows four less than the sum of 7 and 3?

• 4 - (7+3)

• (7+3) - 4

• (7x3) - 4

• 7 + 3 + 4

What does 3² mean?

• 3 x 2

• 3 x 3

• 2 x 2 x 2

• 3 + 3

Solve:

40+(72÷9)÷8

• 49

• 6

• 41

• 15

Solve:

16 ÷ 2 x 4 - 3

• 8

• -1

• 25

• 29

Which expression is equivalent to

4(10 + 7)?

• 40 + 28

• 40 + 7

• 14 + 11

• 4 + 10 + 7

Which expression is NOT equivalent to

15 + 36 + 27?

• 3(5 + 12 + 9)

• 36 + 27 + 15

• 42 + 36

• 5(10 + 31 + 22)

 $\frac{4\ +4^2\ \times\ 2}{3^2\ -\ 6}\ =\ ?$  

 $6\ \times\ \left(9-4\right)^2\ =\ ?$