Decimal word problems

The question

First find the total, then the change.

An eraser costs $1.43 and a ruler costs $3.35. Priya pays with $5.00.
$1.43 + $3.35 = $4.78
$1.43 + $3.35 = $4.78
$5.00 − $4.78 = $0.22
asked:First find the total, then the change.
(a) $4.78
(b) $0.22
  1. Read it through. Each part uses the answer from the part before, so work them in order.
  2. Part (a): How much are both together? $1.43 + $3.35 = $4.78.
  3. Part (b): How much change does Priya get? Using (a): $5.00 − $4.78 = $0.22.
  4. Each part has its own answer — write both: (a) $4.78, (b) $0.22.

How it works.

  1. 01

    Read it through. Each part uses the answer from the part before, so work them in order.

  2. 02

    Part (a): How much are both together? $1.43 + $3.35 = $4.78.

  3. 03

    Part (b): How much change does Priya get? Using (a): $5.00 − $4.78 = $0.22.

  4. 04

    Each part has its own answer — write both: (a) $4.78, (b) $0.22.