Directed Numbers
Hong Kong
Stage 1 - Stage 3
Solve problems involving 4 operations
Interactive practice questions
Let $a$a be a positive number and $b$b a negative number.
a
Will $a+a$a+a be a positive number, a negative number or zero?
Zero
A
Positive
B
Negative
C
b
Will $b+b$b+b be a positive number, a negative number or zero?
Positive
A
Zero
B
Negative
C
Easy
< 1min
Consider the following sentence:
$-6$−6 is added to the product of $2$2 and $-4$−4.
Easy
2min
Consider the following sentence:
The sum of $-8$−8 and the quotient of $-40$−40 and $4$4
Easy
2min
Consider the following sentence:
The product of $3$3 and $-6$−6 is decreased by $-9$−9.
Easy
1min
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