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
23 − 10 = ______
7 × 10 = ______
29 + 10 = ______
65 − 10 = ______
83 − 10 = ______
84 + 10 = ______
80 − 10 = ______
51 − 10 = ______
30 + 10 = ______
4 × 10 = ______
27 + 10 = ______
22 + 10 = ______
52 + 10 = ______
8 × 10 = ______
41 + 10 = ______
56 − 10 = ______
84 + 20 = ______
42 − 10 = ______
88 − 10 = ______
40 + 10 = ______
