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Details for problem "Add Sub walking towers"

Quickname: 5355

Suitable for grades: Grade 1, Grade 2, Grade 3, Grade 4


In a series of addition or subtraction terms, one number changes stepwise.



A series of additon or subtraction terms is given, arranged in an column. The first number (first summand or minuend) stays the same, while the second number (second summand or subtrahend) increases or decreases in a single digit position.

The second number is always one digit less in size.

The number of digits of the first (and by that, the second) number is selectable, and so is the number of terms in a series. The stepping direction may be chosen as up for an increasing second number or down for a decreasing one. It can be chosen whether the changing digit is always the first (highest order) one or any digit may be the changing one. In any case, the digit is fixed for each series of terms.

By selection only addition or only subtraction terms will be presented, or a mixture of both. As a simplification, it may be specified that there will be no borrows or carries over the second number's digits.

There is a setting that trap questions may be included, where occasionally, the first number of a term will change, to catch candidates who just write down a plain sequence on the right hand side without reading the task.

Topics: Arithmetic, Dec system, Whole Nmb

Tags: Addition, Subtraction

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Customization options for this problem

ParameterPossible values
Number of problems1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Number a digits2, 3, 4
Digit changing in bmost significant, any
Plus/minusMixed, Plus, Minus
Number of rows2, 3, 4, 5
Trick questionYes, No
Carry/borrow for bNever, May, Always
Directionrandom, ascending, descending

Other types of problems that appear on worksheets with this problem:

****Add Sub times tableAddition and subtraction of times table products7300Add Sub times table
**Add Sub times table same factorAddition and subtraction of times table products for a single number one to ten5139Add Sub times table same factor
**Dividing fractionsDivision of two fractions.5923Dividing fractions
**Dividing fractions by whole numbersA fraction has to be divided by a whole number.5220Dividing fractions by whole numbers

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