Mathematics Grade 6 15 min

Hundreds chart

Hundreds chart

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1

Introduction & Learning Objectives

Learning Objectives Identify and describe various numerical patterns within a hundreds chart. Use the hundreds chart to visualize and perform basic arithmetic operations (addition, subtraction, multiplication). Classify numbers as prime, composite, multiples, or square numbers using the hundreds chart. Extend patterns observed on the hundreds chart to numbers beyond 100. Connect patterns on the hundreds chart to simple algebraic expressions. Solve problems involving number properties and sequences by utilizing the hundreds chart. Ever wondered if numbers have secret codes or hidden pathways? 🕵️‍♀️ The hundreds chart is like a treasure map for numbers, revealing amazing patterns! In this lesson, we'll dive deep into the hundreds chart, uncovering its structure, explorin...
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Key Concepts & Vocabulary

TermDefinitionExample Hundreds ChartA grid of numbers, typically from 1 to 100, arranged in 10 rows and 10 columns, where each row starts with a number ending in 1 and ends with a number ending in 0 (or 10, 20, etc.).The number 34 is found in the 4th row, 4th column of a standard hundreds chart. Number PatternsPredictable sequences or arrangements of numbers that follow a specific rule or relationship, often visible through color-coding or highlighting on the chart.Highlighting all multiples of 5 on a hundreds chart reveals a pattern of numbers ending in 5 or 0 in two distinct columns. MultiplesThe result of multiplying a number by an integer. On a hundreds chart, multiples of a number form a distinct visual pattern.The multiples of 3 are 3, 6, 9, 12, 15, ... On the chart, these numbers f...
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Core Formulas

Moving Right on the Chart $n \rightarrow n+1$ To find the number immediately to the right of any number 'n' on the hundreds chart, you add 1 to 'n'. This applies within a row. Moving Left on the Chart $n \rightarrow n-1$ To find the number immediately to the left of any number 'n' on the hundreds chart, you subtract 1 from 'n'. This applies within a row. Moving Down on the Chart $n \rightarrow n+10$ To find the number directly below any number 'n' on the hundreds chart, you add 10 to 'n'. This applies within a column. Moving Up on the Chart $n \rightarrow n-10$ To find the number directly above any number 'n' on the hundreds chart, you subtract 10 from 'n'. This applies within a c...

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Sample Practice Questions

Challenging
Imagine a hundreds chart that extends infinitely. If you start at the number 115, what number would you find 4 rows directly down and 2 columns to the left?
A.157
B.153
C.153
D.73
Challenging
There are 25 prime numbers between 1 and 100. What percentage of the numbers on a standard 1-100 hundreds chart are prime?
A.20%
B.25%
C.30%
D.100%
Challenging
A person starts on a number on the hundreds chart. They move 3 spaces down and 2 spaces right, landing on 68. Their starting number is a multiple of which of these numbers?
A.5
B.7
C.9
D.11

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