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
35 − 10 = ______
61 + 20 = ______
60 + 10 = ______
82 − 10 = ______
6 × 10 = ______
7 × 10 = ______
89 + 10 = ______
3 × 10 = ______
67 + 20 = ______
34 + 20 = ______
77 − 10 = ______
48 + 10 = ______
5 × 10 = ______
68 + 10 = ______
23 − 10 = ______
33 − 10 = ______
46 + 10 = ______
75 + 10 = ______
68 + 20 = ______
4 × 10 = ______
