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
2 × 10 = ______
88 + 10 = ______
36 + 10 = ______
74 + 20 = ______
6 × 10 = ______
46 + 10 = ______
25 − 10 = ______
91 − 10 = ______
66 + 10 = ______
66 − 10 = ______
35 + 20 = ______
86 + 10 = ______
77 + 20 = ______
7 × 10 = ______
85 − 10 = ______
58 − 10 = ______
80 − 10 = ______
22 + 20 = ______
85 + 20 = ______
51 + 10 = ______
