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
12 + 10 = ______
78 − 10 = ______
73 + 10 = ______
9 × 10 = ______
41 + 10 = ______
2 × 10 = ______
35 − 10 = ______
23 + 10 = ______
26 − 10 = ______
24 + 20 = ______
97 − 10 = ______
87 + 20 = ______
17 + 10 = ______
28 + 20 = ______
80 − 10 = ______
41 − 10 = ______
6 × 10 = ______
1 × 10 = ______
32 + 20 = ______
80 + 20 = ______
