Keep a calculation together
See why a grouped amount stays together while you calculate.
13 practice questions Let’s explore →Grade 5 maths.
Discover the idea, experiment with a picture, then try it yourself. 43 authored lessons available.
Write the calculation you mean
Build an expression that records the stated sequence of calculations.
8 practice questions Let’s explore →Read an expression without solving it
Describe copies or equal shares of a grouped amount without calculating its total.
8 practice questions Let’s explore →A digit gets its value from its place
Connect a digit's count and place unit to the amount it represents.
10 practice questions Let’s explore →Exchange pieces, keep the amount
Change the count of place units without changing the measured amount.
8 practice questions Let’s explore →Build a power of ten
Connect repeated tenfold copies to exponents and explain zero patterns.
10 practice questions Let’s explore →Make a decimal amount larger or smaller
Scale a measured amount exactly while keeping its original unit.
12 practice questions Let’s explore →Give a decimal amount its name
Connect decimal numerals, place-unit collections and unambiguous number names.
12 practice questions Let’s explore →Build a decimal from digit contributions
Record the amount contributed by each nonzero digit and its place unit.
8 practice questions Let’s explore →Compare decimal amounts
Compare same-unit amounts through thousandths and explain the first differing place.
10 practice questions Let’s explore →Round a decimal amount
Use exact distances and place values to round an original amount, including ties and unchanged values.
16 practice questions Let’s explore →Multiply with written rows
Connect a whole-number calculation to quantities, place values and the question's units.
12 practice questions Let’s explore →Divide with two-digit groups
Connect a whole-number calculation to quantities, place values and the question's units.
12 practice questions Let’s explore →Use division in a story
Connect a whole-number calculation to quantities, place values and the question's units.
10 practice questions Let’s explore →Add decimal amounts
Connect exact decimal operations to measured quantities and an explained written method.
10 practice questions Let’s explore →Subtract decimal amounts
Connect exact decimal operations to measured quantities and an explained written method.
10 practice questions Let’s explore →Multiply decimal amounts
Connect exact decimal operations to measured quantities and an explained written method.
10 practice questions Let’s explore →Divide decimal amounts
Connect exact decimal operations to measured quantities and an explained written method.
10 practice questions Let’s explore →Join fractions with different pieces
Preserve the original whole while reasoning with equal-sized fraction pieces.
10 practice questions Let’s explore →Remove fractions with different pieces
Preserve the original whole while reasoning with equal-sized fraction pieces.
10 practice questions Let’s explore →Make sense of fraction stories
Preserve the original whole while reasoning with equal-sized fraction pieces.
8 practice questions Let’s explore →Share wholes as fractions
Connect whole-number division to an equal fractional or mixed-number share.
12 practice questions Let’s explore →Explain a fractional share
Connect whole-number division to an equal fractional or mixed-number share.
12 practice questions Let’s explore →Build a fraction of an amount
Connect each fraction product to a concrete construction and a fixed original unit.
12 practice questions Let’s explore →Tile rectangles with fraction sides
Connect each fraction product to a concrete construction and a fixed original unit.
12 practice questions Let’s explore →Will the amount change?
Connect fraction reasoning to concrete quantities without losing their meaning.
12 practice questions Let’s explore →Use fraction products in stories
Connect fraction reasoning to concrete quantities without losing their meaning.
12 practice questions Let’s explore →Share a fraction fairly
Connect the original amount, a share or group, and inverse multiplication.
8 practice questions Let’s explore →Count fraction-sized groups
Connect the original amount, a share or group, and inverse multiplication.
8 practice questions Let’s explore →Choose the meaning of division
Connect the original amount, a share or group, and inverse multiplication.
8 practice questions Let’s explore →Travel with coordinates
Connect labelled quantities to a point and explain what stays together.
10 practice questions Let’s explore →Give a point its meaning
Connect labelled quantities to a point and explain what stays together.
10 practice questions Let’s explore →Connect two growing patterns
Connect labelled quantities to a point and explain what stays together.
10 practice questions Let’s explore →How much space do cubes fill?
Understand occupied space through unit cubes, equal layers and named parts.
8 practice questions Let’s explore →Build a solid one layer at a time
Understand occupied space through unit cubes, equal layers and named parts.
8 practice questions Let’s explore →Connect a solid to a volume formula
Understand occupied space through unit cubes, equal layers and named parts.
8 practice questions Let’s explore →Join two solid sections
Understand occupied space through unit cubes, equal layers and named parts.
8 practice questions Let’s explore →Same amount, different units
Keep physical quantities and named observations connected to exact numbers.
8 practice questions Let’s explore →Follow the measured amounts
Keep physical quantities and named observations connected to exact numbers.
8 practice questions Let’s explore →Give every measurement a mark
Keep physical quantities and named observations connected to exact numbers.
8 practice questions Let’s explore →Use measurements to solve a problem
Keep physical quantities and named observations connected to exact numbers.
8 practice questions Let’s explore →Which rules does this shape keep?
Check concrete sides and corners, then connect families by their shared rules.
10 practice questions Let’s explore →A shape can belong to two families
Check concrete sides and corners, then connect families by their shared rules.
10 practice questions Let’s explore →