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
77 + 10 = ______
67 − 10 = ______
14 + 10 = ______
56 + 20 = ______
60 − 10 = ______
5 × 10 = ______
74 − 10 = ______
13 + 20 = ______
41 + 10 = ______
76 + 10 = ______
8 × 10 = ______
21 − 10 = ______
48 + 10 = ______
42 − 10 = ______
81 − 10 = ______
73 + 20 = ______
66 + 10 = ______
82 + 20 = ______
35 − 10 = ______
63 + 10 = ______
