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
52 − 10 = ______
20 + 20 = ______
34 + 10 = ______
2 × 10 = ______
45 + 10 = ______
9 × 10 = ______
5 × 10 = ______
85 + 20 = ______
73 + 10 = ______
64 − 10 = ______
51 + 20 = ______
6 × 10 = ______
96 − 10 = ______
91 − 10 = ______
98 − 10 = ______
59 + 20 = ______
38 − 10 = ______
74 − 10 = ______
74 + 10 = ______
15 + 10 = ______
