1
Long multiplication
47 × 3 ---- 141 (3×7=21 carry 2, 3×4+2=14)
47 × 3 = 141
Multiplication & Division
📖 Study · Multiplication & Division (Grade 4)
Multiplication & Division (Grade 4)
Multiply 2- and 3-digit numbers. Divide with remainders.
🎯 What you'll learn
- ✓Long multiplication
- ✓Division by 1-digit
- ✓Find remainders
- ✓Solve word problems
2
By 2 digits
23 × 14: do 23×4 and 23×10, then add.
23 × 14 = 92 + 230 = 322
3
Division
144 ÷ 12 = 12. Think 'how many 12s in 144?'
144 ÷ 12 = 12
4
Remainder
47 ÷ 5 = 9 remainder 2 (because 9×5=45, 47−45=2).
47 ÷ 5 = 9 r 2