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
26 − 10 = ______
71 − 10 = ______
68 + 10 = ______
1 × 10 = ______
28 + 10 = ______
74 − 10 = ______
81 + 10 = ______
13 + 20 = ______
2 × 10 = ______
50 + 10 = ______
34 + 10 = ______
3 × 10 = ______
6 × 10 = ______
44 + 10 = ______
45 + 10 = ______
72 + 20 = ______
23 + 20 = ______
7 × 10 = ______
86 − 10 = ______
33 + 20 = ______
