Year 4 Maths Links 21.1.21 Spr4.1.4-Efficient-multiplication 21.1.21 Y4-Spring-Block-1-WO4-Efficient-multiplication-2019 21.1.21 Y4-Spring-Block-1-ANS4-Efficient-multiplication-2019 21.1.21 Extra Challenge Year 4 Problem Solving x9 21.1.21 Year 4 x9 Problem Solving Answers 21.1.21