Question 1

Which expression has half the value of $2 + 898 	imes 950$?

Accepted Answer

$1 + 898 	imes 475$

Answer

$1 + 449 	imes 475 $

Answer

$2 + 898 	imes 475 $

Answer

$12 + 449 	imes 475 $

Question 2

All the students in a class are sitting at tables.

$\quad\bullet\enspace$ There are $6$ round tables, and $3$ boys and $4$ girls are sitting at each round table.
$\quad\bullet\enspace$ There are $7$ square tables, and $5$ boys and $3$ girls are sitting at each square table.
$\quad\bullet\enspace$ Ms. Martin gives each student in the class $2$ books.

Which expression can be used to find the total number of books Ms. Martin gives to the students?

Accepted Answer

$2 [6 (3 + 4) + 7 (5 + 3)] $

Answer

$6 (3 + 4) + 7 (5 + 3) + 2 $

Answer

$2 (6 + 3 + 4 + 7 + 5 + 3)$

Answer

$6 [(3 + 4) + 2] + 7 [(5 + 3) + 2]$

Question 3

Emma and Bella collect bugs for a science project.
$\bullet$On Monday, Emma collects 15 bugs, and Bella collects 3 times as many bugs as Emma collects.
$\bullet$ On Tuesday, Emma collects 6 bugs, and Bella collects 8 times as many bugs as Emma collects.
Which expression can be used to find the total number of bugs the girls collect on both days?

Accepted Answer

$[15+(3 	imes 15)] + [6+ (8 	imes6)]$

Answer

$(15+3) 	imes (6+8)$

Answer

$[15 	imes(3+15)] + [6	imes (8+6)]$

Answer

$(15+6) 	imes (3+8)$

Question 4

The number of marbles in a jar is 4 times the difference between 17 and 12. Which expression can be used to find the number of marbles in the jar?

Accepted Answer

$4 	imes(17-12)$

Answer

$(17-12)+4$

Answer

$4 	imes17-12$

Answer

$17 	imes12-4$

Question 5

Which calculation is represented by the expression $(5 + 2) \div 9$?

Accepted Answer

divide the sum of five and two by nine

Answer

divide nine by the sum of five and two

Answer

divide two by nine, then add five

Answer

divide five by nine, then add two

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