Percent Increase and Decrease Quiz
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Percentages (full coverage including worksheets)
A differentiated interactive geogebra applet that aids the modelling (with solutions) of… Mental percentage calculation Calculator percentage calculation Percentage increase using multipliers Percentage decrease using multipliers Successive percentage change using multipliers Reverse percentages using multipliers Compound percentages (forwards and reverse) Please see the attached video for how to use. I have also included seven differentiated worksheets with solutions. These are also previewed
6th - 10th
Numbers, Other (Math)
Adding and Subtracting Scalar Multiples of Matrices | Boom Cards
Help students practice adding and subtracting scalar multiples of matrices with this 15-card Boom Card deck. Students first multiply matrices by given scalars, then combine the resulting matrices by adding or subtracting corresponding elements. This deck reinforces multiple skills at once— scalar multiplication and matrix operations—while helping students stay organized through multi-step problems. The interactive format makes it ideal for Algebra 2 or Precalculus, whether used for independen
10th - 12th
Algebra, Numbers
CCSS
HSN-VM.C.6
Adding and Subtracting Matrices | Boom Cards
Help students practice adding and subtracting matrices with this 15-card Boom Card deck. Students perform operations by combining corresponding elements in matrices of the same dimensions and simplifying their answers. Problems include both addition and subtraction of matrices, reinforcing the importance of matching positions (rows and columns) when performing operations. This deck helps students build accuracy and confidence working with matrices in a clear, step-by-step format. Perfect for
10th - 12th
Algebra, Numbers
CCSS
HSN-VM.C.6
Adding and Subtracting Complex Numbers | Boom Cards
Help students practice adding and subtracting complex numbers with this 15-card Boom Card deck. Students combine real parts and imaginary parts separately to simplify each expression and write answers in standard form (a + bi). Problems include both addition and subtraction, helping students build confidence working with expressions that involve the imaginary unit iii. This deck reinforces proper organization of terms and strengthens understanding of how complex numbers behave under operation
9th - 12th
Numbers
CCSS
HSN-CN.A.2
, HSN-CN.B.5
Multiplying Two Matrices | Fill in the Blanks Boom Cards
Help students master multiplying two matrices with this 15-card Boom Card deck. Students multiply matrices by finding the dot product of rows and columns to determine each entry in the resulting matrix. Problems guide students through the process of checking matrix dimensions, organizing their work, and carefully calculating each value in the product matrix. This deck builds both conceptual understanding and procedural fluency with matrix multiplication. Perfect for Algebra 2 or Precalculus,
10th - 12th
Algebra, Numbers
CCSS
HSN-VM.C.7
, HSN-VM.C.8
Finding the Determinant of a Matrix (2×2 Only) | Boom Cards
Help students practice finding the determinant of a matrix with this 15-card Boom Card deck focused on 2×2 matrices only. Students use the determinant formula to multiply and subtract values to find each solution. Problems are designed to build confidence with the process while reinforcing accuracy and attention to detail. By focusing only on 2×2 matrices, this deck provides clear, targeted practice that helps students master the foundational concept before moving on to more complex cases. Pe
10th - 12th
Algebra, Numbers
CCSS
HSN-VM.C.8
, HSN-VM.C.9
Simplifying Radical Expressions with Imaginary Numbers | Boom Cards
Help students build confidence simplifying radicals that involve imaginary numbers with this 15-card Boom Card deck. Students simplify square roots of negative numbers by factoring out perfect squares and rewriting expressions using the imaginary unit i. Problems guide students to recognize when radicals produce imaginary results and simplify expressions into simplest radical form. This deck reinforces connections between radicals and complex numbers while strengthening algebraic reasoning. P
9th - 12th
Numbers
CCSS
HSN-CN.A.1
, HSN-CN.A.2
Multiplying a Scalar by a Matrix | Fill-in-the-Blank Boom Cards
Give students targeted practice multiplying a scalar by a matrix with this 15-card fill-in-the-blank Boom Card deck. Students multiply each element of a matrix by a given scalar and complete missing values to correctly form the resulting matrix. The fill-in-the-blank format encourages students to focus on each individual entry, reinforcing accuracy and understanding of how scalar multiplication affects every element in the matrix. Problems include a variety of matrix sizes and positive/negati
10th - 12th
Algebra, Numbers
CCSS
HSN-VM.C.6
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