A Cross-Number Puzzle
Just like a crossword, students fill the spaces by answering questions, and just like in a crossword, sometimes you need to find the answer to another question to solve the one you are working on.
The worksheet is a part of a larger unit that was written to help students move beyond times tables, providing them with different methods for solving multi-digit multiplication problems, including the partitioning method, area method and lattice method
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Learning goals
- We are learning to solve problems involving multiplication of large numbers by 1- or 2-digit numbers using efficient mental or written strategies and appropriate digital technologies, e.g. arrays.
- We are learning to solve problems involving multiplication of large numbers by one or two-digit numbers using efficient mental or written strategies and appropriate digital technologies, e.g. area model, arrays and Italian Lattice Method.
Curriculum alignment
AC9M5N06
9
Solve problems involving multiplication of larger numbers by one- or two-digit numbers, choosing efficient calculation strategies and using digital tools where appropriate; check the reasonableness of answers
ACMNA100
8.4
Solve problems involving multiplication of large numbers by one- or two-digit numbers using efficient mental, written strategies and appropriate digital technologies
MA3-1WM
old
Describes and represents mathematical situations in a variety of ways using mathematical terminology and some conventions
MA3-2WM
old
Selects and applies appropriate problem- solving strategies, including the use of digital technologies, in undertaking investigations
MA3-3WM
old
Gives a valid reason for supporting one possible solution over another
MA3-6NA
old
Selects and applies appropriate strategies for multiplication and division, and applies the order of operations to calculations involving more than one operation
MA3-RN-01
new
Applies an understanding of place value and the role of zero to represent the properties of numbers
MA3-RN-02
new
Compares and orders decimals up to 3 decimal places
MA3-RN-03
new
Determines percentages of quantities, and finds equivalent fractions and decimals for benchmark percentage values
MA3-AR-01
new
Selects and applies appropriate strategies to solve addition and subtraction problems
MA3-MR-01
new
Selects and applies appropriate strategies to solve multiplication and division problems
MA3-MR-02
new
Constructs and completes number sentences involving multiplicative relations, applying the order of operations to calculations
Australian Curriculum covers QLD / SA / WA / NT / TAS / ACT.