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
46 − 10 = ______
85 + 10 = ______
52 − 10 = ______
72 + 20 = ______
1 × 10 = ______
20 + 20 = ______
23 − 10 = ______
79 + 20 = ______
26 + 20 = ______
17 + 10 = ______
61 + 20 = ______
2 × 10 = ______
47 + 20 = ______
5 × 10 = ______
71 − 10 = ______
8 × 10 = ______
33 − 10 = ______
99 − 10 = ______
40 + 10 = ______
79 + 10 = ______
