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
81 − 10 = ______
87 − 10 = ______
34 + 20 = ______
7 × 10 = ______
89 + 20 = ______
68 − 10 = ______
97 − 10 = ______
93 − 10 = ______
76 − 10 = ______
50 − 10 = ______
8 × 10 = ______
61 − 10 = ______
65 + 10 = ______
50 + 10 = ______
22 + 10 = ______
80 + 10 = ______
6 × 10 = ______
30 + 10 = ______
74 − 10 = ______
70 + 10 = ______
