Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
14 + 10 = ______
4 × 10 = ______
75 + 10 = ______
34 − 10 = ______
83 + 20 = ______
83 + 10 = ______
8 × 10 = ______
44 + 10 = ______
52 − 10 = ______
3 × 10 = ______
31 + 10 = ______
60 + 10 = ______
25 − 10 = ______
67 − 10 = ______
82 − 10 = ______
52 + 20 = ______
26 + 10 = ______
22 + 20 = ______
38 + 10 = ______
77 + 20 = ______
