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
18 + 20 = ______
49 − 10 = ______
2 × 10 = ______
86 + 10 = ______
93 − 10 = ______
69 + 20 = ______
61 + 10 = ______
5 × 10 = ______
80 + 10 = ______
4 × 10 = ______
52 + 10 = ______
9 × 10 = ______
57 − 10 = ______
41 + 10 = ______
7 × 10 = ______
62 + 10 = ______
6 × 10 = ______
63 + 20 = ______
34 − 10 = ______
8 × 10 = ______
