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
82 − 10 = ______
7 × 10 = ______
44 + 20 = ______
84 + 10 = ______
34 − 10 = ______
65 + 20 = ______
78 − 10 = ______
39 − 10 = ______
85 + 20 = ______
67 + 10 = ______
73 − 10 = ______
79 + 10 = ______
28 + 20 = ______
6 × 10 = ______
69 − 10 = ______
79 + 20 = ______
48 + 10 = ______
66 − 10 = ______
26 − 10 = ______
71 + 20 = ______
