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Add by bridging through 10 up to 100 - (almost) unlimited worksheets

Interactive worksheet pages generate addition practice that crosses the next multiple of ten, with number-line support and automatically corresponding checking pages.
Grades
Grades 1–2, Elementary
File type
Multiple File Types

Updated Oct 19, 2023

Subject
Math, Addition and Subtraction, Addition
Topic
math, add
Resource types
Worksheets & Printables, Worksheets

About this resource

What's inside this resource

Bridging through 10 is a mental math technique that can be used when adding two numbers where the units have a sum greater than ten. 

There are two parts to this resources:

Worksheet Sets

Worksheet Set 1

Adding 1 digit numbers to 2 digit numbers, bridging up to 100 - with visual support


Worksheet Set 2

Adding 2 digit numbers to 2 digit numbers, bridging up to 100 - with visual support

Pupils have the opportunity to practice this topic further either by using the visual method from Worksheets 1 & 2, or using their own graphics that support the concept of bridging.


Worksheet Set 3

Adding 1 digit numbers to 2 digit numbers, bridging up to 100.


Worksheet Set 4

Adding 2 digit numbers to 2 digit numbers, bridging up to 100.

How many worksheets are in each set ?

Almost Unlimited. At the click of a button all numbers are randomised, so you can create as many different worksheets as you need for classwork, homework, revision, preparing for assessment, fillers etc and the numbers will change every time. 

Answers are automatically generated every time.

How many worksheets are in each set ?

Almost unlimited. Numbers are randomised at the click of a button, so the questions change every time.  This means you can create as many new worksheets you will need for practice throughout the year (classwork, homework, revision, fillers etc) or even give small groups of students in your class different sets of questions either at the same level or differentiated .

There will certainly be enough to ensure fluency in this topic. 

The "Interactive Teaching Resource" 

This is designed to be used by teachers and pupils on an Interactive Whiteboard or on a PC/Mac computer for one-to-one tuition.  Examples are randomly generated at the click of a button, so you can use this one page as many times as needed. There is also the option to take the pupils through the process in 3 separate steps, one at a time.

Note
These resources are PDF documents and work with the official  Adobe Acrobat Reader on Windows or Mac computers with the randomising buttons also working via a touchscreen (PC or Mac) or on an Interactive Whiteboard

Common Core Standards

CCSS1.NBT.C.4

Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value & properties of operations. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.

CCSS2.NBT.B.5

Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

In the classroom

Teaching tips & learning objectives

Learning objectives

  • Decompose an addend to reach the next multiple of ten

  • Complete addition after bridging through a ten

  • Represent a multistep addition path on a number line

Teaching tips

  • Model the split that reaches the next ten before using generated practice.

  • Ask learners to label both jumps so the bridge is visible rather than recording only a final sum.

Skills covered

  • Mental addition — addends are decomposed strategically.

  • Place-value reasoning — multiples of ten serve as useful landmarks.

  • Number-line representation — sequential jumps record the method.

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Curriculum

Standards, concepts & topics

Standards

  • 1.NBT.C.4 — Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
  • 2.NBT.B.8 — Mentally add 10 or 100 to a given number 100–900, and mentally subtract 10 or 100 from a given number 100–900.

Core concepts

  • Bridging through ten

  • Addition to one hundred

  • Number-line jumps

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