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
9 × 10 = ______
50 + 20 = ______
2 × 10 = ______
13 + 10 = ______
22 + 10 = ______
82 + 10 = ______
49 + 10 = ______
1 × 10 = ______
92 − 10 = ______
7 × 10 = ______
52 + 20 = ______
84 + 10 = ______
39 − 10 = ______
85 − 10 = ______
41 − 10 = ______
25 + 10 = ______
30 + 20 = ______
60 + 20 = ______
6 × 10 = ______
25 − 10 = ______
