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
64 + 10 = ______
64 − 10 = ______
42 − 10 = ______
30 + 20 = ______
34 + 20 = ______
8 × 10 = ______
72 + 10 = ______
99 − 10 = ______
57 − 10 = ______
83 + 10 = ______
21 + 10 = ______
25 − 10 = ______
21 − 10 = ______
85 − 10 = ______
43 + 10 = ______
85 + 10 = ______
1 × 10 = ______
84 + 20 = ______
82 − 10 = ______
35 + 10 = ______
