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
3 × 10 = ______
5 × 10 = ______
7 × 10 = ______
59 + 20 = ______
77 − 10 = ______
18 + 20 = ______
9 × 10 = ______
38 + 10 = ______
8 × 10 = ______
6 × 10 = ______
62 + 20 = ______
56 + 20 = ______
55 + 10 = ______
37 + 10 = ______
4 × 10 = ______
84 + 20 = ______
81 − 10 = ______
29 − 10 = ______
84 − 10 = ______
42 + 10 = ______
