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
84 + 10 = ______
1 × 10 = ______
73 + 10 = ______
30 − 10 = ______
55 − 10 = ______
6 × 10 = ______
88 − 10 = ______
63 − 10 = ______
13 + 10 = ______
33 + 20 = ______
7 × 10 = ______
52 + 20 = ______
42 + 10 = ______
67 + 10 = ______
9 × 10 = ______
2 × 10 = ______
64 − 10 = ______
4 × 10 = ______
87 + 10 = ______
43 + 20 = ______
