To learn how to multiply two-digit numbers

To learn how to subtract two-digit numbers

To learn how to add up to four two-digit numbers using place value

To understand the cost of owning a pet

Six thousand

Sixty

Six hundreds

Six ones

None of the above

Two tens and twelve ones

Three tens and two ones

Both A and B

Thinking that numbers must be added in order

Believing that subtraction is the same as addition

Thinking that multiplication is needed

Believing that numbers cannot be added

$51

$144

$154

$120

Multiplying the numbers

Adding the tens

Subtracting the tens

Adding the ones

$154

$120

$144

$51

$11

$7

$8

$25

Add thirty plus twenty

Add fifty plus ten

Add twenty plus ten

Add sixty plus twenty

$154

$144

$120

$51