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
14 + 20 = ______
15 + 10 = ______
70 − 10 = ______
63 − 10 = ______
62 + 10 = ______
41 − 10 = ______
1 × 10 = ______
8 × 10 = ______
7 × 10 = ______
87 − 10 = ______
29 − 10 = ______
82 − 10 = ______
26 − 10 = ______
94 − 10 = ______
54 + 20 = ______
26 + 10 = ______
3 × 10 = ______
24 + 10 = ______
22 + 10 = ______
35 − 10 = ______
