B2.5: Represent and solve addition and subtraction problems with whole…

The Ontario Mathematics, Grades 1–8 outcome B2.5 for Grade 3 says: “Represent and solve addition and subtraction problems with whole numbers that add up to no more than 1000, using tools and algorithms.” These printable Fieldbook pages practise it, each with a full answer key.

Compared with Common Core: 3.NBT.A.2, 3.OA.D.8 (partial).

More Ontario Grade 3 math outcomes we teach

• B1.1 Read, represent, compose and decompose whole numbers up to and including 1000…
• B1.2 Compare and order whole numbers up to and including 1000, in various contexts
• B1.3 Round whole numbers to the nearest ten or hundred, in various contexts
• B1.4 Count to 1000, including by 50s, 100s and 200s, using a variety of tools and…
• B1.5 Use place value to describe and represent multi-digit numbers in a variety of…
• B1.6 Use drawings to represent, solve and compare the results of fair-share…
• B1.7 Represent and solve fair-share problems about equivalent fractions: halves…
• B2.1 Use the properties of operations, and the relationship between multiplication…
• B2.2 Recall and demonstrate the multiplication facts of 2, 5 and 10, and the related…
• B2.3 Use mental math strategies, including estimation, to add and subtract whole…
• B2.4 Show how the algorithms for adding and subtracting whole numbers work, by…
• B2.6 Represent multiplication up to 10 × 10 and division up to 100 ÷ 10, using tools…
• B2.7 Represent and solve multiplication and division problems, including problems…
• B2.8 Show that the numerator of a fraction counts unit fractions, for example 3/5 is…
• C1.1 Identify and describe repeating elements and operations in a variety of…
• C1.2 Create and translate patterns that have repeating elements, movements or…
• C1.3 Determine pattern rules and use them to extend patterns, make and justify…
• C1.4 Create and describe patterns to show relationships among whole numbers up to…
• C2.1 Describe how variables are used, and use them in various contexts
• C2.2 Determine whether given sets of addition, subtraction, multiplication and…
• C2.3 Identify and use equivalent relationships for whole numbers up to 1000, in…
• D1.2 Collect qualitative and quantitative data through observations, experiments and…
• D1.3 Display sets of data, using many-to-one correspondence , in pictographs and bar…
• D1.4 Find the mean and identify the mode or modes, if any, of data sets of whole…
• D1.5 Analyse data shown in different ways, including frequency tables and graphs…
• D2.1 Use the terms impossible, unlikely, equally likely, likely and certain to…
• E1.1 Sort, build and identify cubes, prisms, pyramids, cylinders and cones by…
• E1.2 Put structures together and take them apart, and name the 2D shapes and 3D…
• E2.1 Use appropriate units of length to estimate, measure and compare the perimeters…
• E2.2 Explain the relationships between millimetres, centimetres, metres, and…
• E2.4 Compare, estimate, and measure the mass of various objects, using a pan balance…
• E2.5 Use various units of different sizes to measure the same attribute of a given…
• E2.6 Use analog and digital clocks and timers to tell time in hours, minutes, and…
• E2.7 Compare the areas of 2D shapes by matching, covering, or cutting apart and…
• E2.8 Use appropriate non-standard units to measure area, and explain how gaps and…
• E2.9 Use square centimetres (cm²) and square metres (m²) to estimate, measure and…
• F1.1 Estimate and calculate the change needed for simple cash transactions, using…

Every Ontario Grade 3 math curriculum outcome we teach

Every unit matched to Ontario's curriculum · All places and curricula