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
65 − 10 = ______
7 × 10 = ______
5 × 10 = ______
69 + 10 = ______
77 + 10 = ______
9 × 10 = ______
87 − 10 = ______
60 − 10 = ______
25 − 10 = ______
59 + 10 = ______
52 + 10 = ______
30 + 10 = ______
8 × 10 = ______
48 − 10 = ______
56 + 20 = ______
39 − 10 = ______
24 + 20 = ______
6 × 10 = ______
90 − 10 = ______
61 + 10 = ______
