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 = ______
82 + 20 = ______
92 − 10 = ______
18 + 10 = ______
61 + 20 = ______
46 + 20 = ______
88 + 10 = ______
47 + 10 = ______
7 × 10 = ______
2 × 10 = ______
96 − 10 = ______
65 − 10 = ______
63 + 10 = ______
6 × 10 = ______
61 − 10 = ______
86 − 10 = ______
35 − 10 = ______
48 + 10 = ______
46 + 10 = ______
3 × 10 = ______
