Home Mathematics Grade 3 Mathematics · Grade 3 Skills Column addition to 4 digits Adds 3,478 + 2,356 in columns, carrying in any column. Column subtraction to 4 digits Subtracts 6,254 − 2,876 in columns, exchanging from the next place when needed. Subtract across zeros Works out 5,003 − 2,768 by exchanging through the zeros. Check with inverse and estimates Checks 5,003 − 2,768 = 2,235 by adding 2,235 + 2,768 and by rounding to check it is near 2,200. All multiplication facts to 10 × 10 Knows 7 × 8 = 56 and 56 ÷ 7 = 8 and every other fact to 10 × 10. Commutativity and fact families Uses 6 × 4 = 4 × 6 to halve the facts to learn, and writes the four facts 6 × 4, 4 × 6, 24 ÷ 4, 24 ÷ 6; knows division is not commutative. The 11 and 12 tables with division facts Knows 12 × 7 = 84 and 96 ÷ 12 = 8, and 11 × 9 = 99. Multiply 2- and 3-digit numbers by 1 digit Works out 47 × 6 and 308 × 4 with a grid, partial products or short multiplication. Divide 2- and 3-digit numbers by 1 digit with a remainder Works out 87 ÷ 4 = 21 remainder 3 and 453 ÷ 5 = 90 remainder 3, saying the remainder is what is left over. Divide 4-digit numbers by 1 digit (introduce) Works out 4,375 ÷ 5 = 875 by short division and checks by multiplying. Explore only. 2-digit × 2-digit with an area model (introduce) Splits 23 × 14 into 20 × 10, 20 × 4, 3 × 10, 3 × 4 and adds the four partial products. Explore only. Brackets and order of operations (introduce) Says 3 × (4 + 2) = 18 but 3 × 4 + 2 = 14 because brackets go first. Explore only. Multiply three numbers in any order (introduce) Reorders 2 × 7 × 5 as 2 × 5 × 7 = 10 × 7 = 70 and says why the order does not matter. Explore only. Distributive law as a strategy (introduce) Works out 7 × 14 as 7 × 10 + 7 × 4 = 98. Explore only. ×0 and ×1 facts Says 7 × 0 = 0 and 7 × 1 = 7, and 0 ÷ 5 = 0, knowing multiplying by 1 changes nothing and by 0 gives 0. (OP-13/14 stay explore-only.)