Year 4 Maths Worksheets - Math Salamanders Using these Year 4 maths worksheets will help your child to: learn to add numbers mentally to 100; add on 1, 10, 100 and 1000 to different numbers; learn to add 4 digit numbers in columns; Addition Facts Worksheets to 100+100 4-Digit Addition Worksheets Money Addition Worksheets (£ ) Top of Page Year 4 Subtraction Worksheets (3rd Grade)