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
43 + 10 = ______
8 × 10 = ______
71 − 10 = ______
7 × 10 = ______
88 + 10 = ______
87 + 10 = ______
15 + 20 = ______
33 − 10 = ______
22 + 10 = ______
9 × 10 = ______
65 − 10 = ______
80 + 20 = ______
61 − 10 = ______
45 − 10 = ______
23 − 10 = ______
28 + 10 = ______
18 + 20 = ______
60 − 10 = ______
54 + 20 = ______
73 + 20 = ______
