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
6 × 10 = ______
13 + 10 = ______
98 − 10 = ______
3 × 10 = ______
83 − 10 = ______
78 + 10 = ______
84 − 10 = ______
34 + 20 = ______
82 − 10 = ______
85 + 20 = ______
34 + 10 = ______
58 + 20 = ______
65 − 10 = ______
39 − 10 = ______
24 − 10 = ______
37 + 10 = ______
87 + 20 = ______
8 × 10 = ______
80 − 10 = ______
67 + 10 = ______
