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
7 × 10 = ______
91 − 10 = ______
73 + 20 = ______
57 − 10 = ______
34 − 10 = ______
32 + 10 = ______
34 + 10 = ______
38 − 10 = ______
64 + 10 = ______
17 + 10 = ______
3 × 10 = ______
67 + 10 = ______
28 − 10 = ______
55 + 10 = ______
25 + 10 = ______
76 + 20 = ______
92 − 10 = ______
35 + 10 = ______
36 + 10 = ______
85 + 20 = ______
