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
8 × 10 = ______
88 + 10 = ______
46 − 10 = ______
61 + 10 = ______
22 + 10 = ______
3 × 10 = ______
60 − 10 = ______
72 − 10 = ______
14 + 20 = ______
48 − 10 = ______
51 − 10 = ______
72 + 20 = ______
21 + 20 = ______
76 + 10 = ______
4 × 10 = ______
12 + 10 = ______
44 + 10 = ______
82 + 20 = ______
62 − 10 = ______
46 + 10 = ______
