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
92 − 10 = ______
3 × 10 = ______
18 + 10 = ______
53 − 10 = ______
9 × 10 = ______
12 + 20 = ______
51 + 10 = ______
63 + 20 = ______
40 − 10 = ______
6 × 10 = ______
82 − 10 = ______
24 + 20 = ______
57 + 20 = ______
21 − 10 = ______
1 × 10 = ______
74 + 10 = ______
23 − 10 = ______
5 × 10 = ______
50 + 10 = ______
35 − 10 = ______
