Hong Kong

Stage 1 - Stage 3

Is this number sentence true or false for every value of $m$`m`?

$m+1=1+m$`m`+1=1+`m`

True

A

False

B

Easy

< 1min

Is this number sentence true or false for every value of $g$`g`?

$g\times3=3\times g$`g`×3=3×`g`

Easy

< 1min

Is this number sentence true or false for every value of $n$`n`?

$-5+n=n-5$−5+`n`=`n`−5

Easy

< 1min

Is this number sentence true or false for every positive value of $v$`v`?

$v\div3=3\div v$`v`÷3=3÷`v`

Easy

< 1min

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