Given that : Tom bought total = 47 jigsaw puzzles.
Number of pieces in each puzzle = 70 pieces.
We need to find the number of pieces in all 47 jigsaw puzzles.
In order to find the number of pieces in all 47 jigsaw puzzles, we need to multiply 47 jigsaw puzzles by 70 pieces each.
We get
47 × 70 = 3290 pieces.
Therefore, Tom got total 3290 pieces all in 47 jigsaw puzzles.